640520760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1423}}^1$

素因数の和:1490

約数の個数: 192

約数和(自身を含む): 2181795840

約数和(自身を除く): 1541275080

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, 341, 363, 372, 440, 465, 484, 605, 620, 660, 682, 726, 744, 930, 968, 1023, 1210, 1240, 1320, 1364, 1423, 1452, 1705, 1815, 1860, 2046, 2420, 2728, 2846, 2904, 3410, 3630, 3720, 3751, 4092, 4269, 4840, 5115, 5692, 6820, 7115, 7260, 7502, 8184, 8538, 10230, 11253, 11384, 13640, 14230, 14520, 15004, 15653, 17076, 18755, 20460, 21345, 22506, 28460, 30008, 31306, 34152, 37510, 40920, 42690, 44113, 45012, 46959, 56265, 56920, 62612, 75020, 78265, 85380, 88226, 90024, 93918, 112530, 125224, 132339, 150040, 156530, 170760, 172183, 176452, 187836, 220565, 225060, 234795, 264678, 313060, 344366, 352904, 375672, 441130, 450120, 469590, 485243, 516549, 529356, 626120, 661695, 688732, 860915, 882260, 939180, 970486, 1033098, 1058712, 1323390, 1377464, 1455729, 1721830, 1764520, 1878360, 1940972, 2066196, 2426215, 2582745, 2646780, 2911458, 3443660, 3881944, 4132392, 4852430, 5165490, 5293560, 5337673, 5822916, 6887320, 7278645, 9704860, 10330980, 10675346, 11645832, 14557290, 16013019, 19409720, 20661960, 21350692, 26688365, 29114580, 32026038, 42701384, 53376730, 58229160, 64052076, 80065095, 106753460, 128104152, 160130190, 213506920, 320260380, 640520760]

約数ペア:

[(1, 640520760), (2, 320260380), (3, 213506920), (4, 160130190), (5, 128104152), (6, 106753460), (8, 80065095), (10, 64052076), (11, 58229160), (12, 53376730), (15, 42701384), (20, 32026038), (22, 29114580), (24, 26688365), (30, 21350692), (31, 20661960), (33, 19409720), (40, 16013019), (44, 14557290), (55, 11645832), (60, 10675346), (62, 10330980), (66, 9704860), (88, 7278645), (93, 6887320), (110, 5822916), (120, 5337673), (121, 5293560), (124, 5165490), (132, 4852430), (155, 4132392), (165, 3881944), (186, 3443660), (220, 2911458), (242, 2646780), (248, 2582745), (264, 2426215), (310, 2066196), (330, 1940972), (341, 1878360), (363, 1764520), (372, 1721830), (440, 1455729), (465, 1377464), (484, 1323390), (605, 1058712), (620, 1033098), (660, 970486), (682, 939180), (726, 882260), (744, 860915), (930, 688732), (968, 661695), (1023, 626120), (1210, 529356), (1240, 516549), (1320, 485243), (1364, 469590), (1423, 450120), (1452, 441130), (1705, 375672), (1815, 352904), (1860, 344366), (2046, 313060), (2420, 264678), (2728, 234795), (2846, 225060), (2904, 220565), (3410, 187836), (3630, 176452), (3720, 172183), (3751, 170760), (4092, 156530), (4269, 150040), (4840, 132339), (5115, 125224), (5692, 112530), (6820, 93918), (7115, 90024), (7260, 88226), (7502, 85380), (8184, 78265), (8538, 75020), (10230, 62612), (11253, 56920), (11384, 56265), (13640, 46959), (14230, 45012), (14520, 44113), (15004, 42690), (15653, 40920), (17076, 37510), (18755, 34152), (20460, 31306), (21345, 30008), (22506, 28460)]