1638886920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 256

約数和(自身を含む): 5599272960

約数和(自身を除く): 3960386040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 121, 124, 132, 155, 165, 186, 220, 242, 248, 264, 310, 330, 331, 341, 363, 372, 440, 465, 484, 605, 620, 660, 662, 682, 726, 744, 930, 968, 993, 1023, 1210, 1240, 1320, 1324, 1331, 1364, 1452, 1655, 1705, 1815, 1860, 1986, 2046, 2420, 2648, 2662, 2728, 2904, 3310, 3410, 3630, 3641, 3720, 3751, 3972, 3993, 4092, 4840, 4965, 5115, 5324, 6620, 6655, 6820, 7260, 7282, 7502, 7944, 7986, 8184, 9930, 10230, 10261, 10648, 10923, 11253, 13240, 13310, 13640, 14520, 14564, 15004, 15972, 18205, 18755, 19860, 19965, 20460, 20522, 21846, 22506, 26620, 29128, 30008, 30783, 31944, 36410, 37510, 39720, 39930, 40051, 40920, 41044, 41261, 43692, 45012, 51305, 53240, 54615, 56265, 61566, 72820, 75020, 79860, 80102, 82088, 82522, 87384, 90024, 102610, 109230, 112530, 112871, 120153, 123132, 123783, 145640, 150040, 153915, 159720, 160204, 165044, 200255, 205220, 206305, 218460, 225060, 225742, 240306, 246264, 247566, 307830, 320408, 330088, 338613, 400510, 410440, 412610, 436920, 440561, 450120, 451484, 480612, 495132, 564355, 600765, 615660, 618915, 677226, 801020, 825220, 881122, 902968, 961224, 990264, 1128710, 1201530, 1231320, 1237830, 1241581, 1321683, 1354452, 1602040, 1650440, 1693065, 1762244, 2202805, 2257420, 2403060, 2475660, 2483162, 2643366, 2708904, 3386130, 3524488, 3724743, 4405610, 4514840, 4806120, 4951320, 4966324, 5286732, 6207905, 6608415, 6772260, 7449486, 8811220, 9932648, 10573464, 12415810, 13216830, 13544520, 13657391, 14898972, 17622440, 18623715, 24831620, 26433660, 27314782, 29797944, 37247430, 40972173, 49663240, 52867320, 54629564, 68286955, 74494860, 81944346, 109259128, 136573910, 148989720, 163888692, 204860865, 273147820, 327777384, 409721730, 546295640, 819443460, 1638886920]

約数ペア:

[(1, 1638886920), (2, 819443460), (3, 546295640), (4, 409721730), (5, 327777384), (6, 273147820), (8, 204860865), (10, 163888692), (11, 148989720), (12, 136573910), (15, 109259128), (20, 81944346), (22, 74494860), (24, 68286955), (30, 54629564), (31, 52867320), (33, 49663240), (40, 40972173), (44, 37247430), (55, 29797944), (60, 27314782), (62, 26433660), (66, 24831620), (88, 18623715), (93, 17622440), (110, 14898972), (120, 13657391), (121, 13544520), (124, 13216830), (132, 12415810), (155, 10573464), (165, 9932648), (186, 8811220), (220, 7449486), (242, 6772260), (248, 6608415), (264, 6207905), (310, 5286732), (330, 4966324), (331, 4951320), (341, 4806120), (363, 4514840), (372, 4405610), (440, 3724743), (465, 3524488), (484, 3386130), (605, 2708904), (620, 2643366), (660, 2483162), (662, 2475660), (682, 2403060), (726, 2257420), (744, 2202805), (930, 1762244), (968, 1693065), (993, 1650440), (1023, 1602040), (1210, 1354452), (1240, 1321683), (1320, 1241581), (1324, 1237830), (1331, 1231320), (1364, 1201530), (1452, 1128710), (1655, 990264), (1705, 961224), (1815, 902968), (1860, 881122), (1986, 825220), (2046, 801020), (2420, 677226), (2648, 618915), (2662, 615660), (2728, 600765), (2904, 564355), (3310, 495132), (3410, 480612), (3630, 451484), (3641, 450120), (3720, 440561), (3751, 436920), (3972, 412610), (3993, 410440), (4092, 400510), (4840, 338613), (4965, 330088), (5115, 320408), (5324, 307830), (6620, 247566), (6655, 246264), (6820, 240306), (7260, 225742), (7282, 225060), (7502, 218460), (7944, 206305), (7986, 205220), (8184, 200255), (9930, 165044), (10230, 160204), (10261, 159720), (10648, 153915), (10923, 150040), (11253, 145640), (13240, 123783), (13310, 123132), (13640, 120153), (14520, 112871), (14564, 112530), (15004, 109230), (15972, 102610), (18205, 90024), (18755, 87384), (19860, 82522), (19965, 82088), (20460, 80102), (20522, 79860), (21846, 75020), (22506, 72820), (26620, 61566), (29128, 56265), (30008, 54615), (30783, 53240), (31944, 51305), (36410, 45012), (37510, 43692), (39720, 41261), (39930, 41044), (40051, 40920)]