397305920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:401

約数の個数: 168

約数和(自身を含む): 1076699904

約数和(自身を除く): 679393984

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 121, 124, 155, 160, 176, 220, 242, 248, 310, 320, 331, 341, 352, 440, 484, 496, 605, 620, 662, 682, 704, 880, 968, 992, 1210, 1240, 1324, 1364, 1655, 1705, 1760, 1936, 1984, 2420, 2480, 2648, 2728, 3310, 3410, 3520, 3641, 3751, 3872, 4840, 4960, 5296, 5456, 6620, 6820, 7282, 7502, 7744, 9680, 9920, 10261, 10592, 10912, 13240, 13640, 14564, 15004, 18205, 18755, 19360, 20522, 21184, 21824, 26480, 27280, 29128, 30008, 36410, 37510, 38720, 40051, 41044, 51305, 52960, 54560, 58256, 60016, 72820, 75020, 80102, 82088, 102610, 105920, 109120, 112871, 116512, 120032, 145640, 150040, 160204, 164176, 200255, 205220, 225742, 233024, 240064, 291280, 300080, 320408, 328352, 400510, 410440, 451484, 564355, 582560, 600160, 640816, 656704, 801020, 820880, 902968, 1128710, 1165120, 1200320, 1241581, 1281632, 1602040, 1641760, 1805936, 2257420, 2483162, 2563264, 3204080, 3283520, 3611872, 4514840, 4966324, 6207905, 6408160, 7223744, 9029680, 9932648, 12415810, 12816320, 18059360, 19865296, 24831620, 36118720, 39730592, 49663240, 79461184, 99326480, 198652960, 397305920]

約数ペア:

[(1, 397305920), (2, 198652960), (4, 99326480), (5, 79461184), (8, 49663240), (10, 39730592), (11, 36118720), (16, 24831620), (20, 19865296), (22, 18059360), (31, 12816320), (32, 12415810), (40, 9932648), (44, 9029680), (55, 7223744), (62, 6408160), (64, 6207905), (80, 4966324), (88, 4514840), (110, 3611872), (121, 3283520), (124, 3204080), (155, 2563264), (160, 2483162), (176, 2257420), (220, 1805936), (242, 1641760), (248, 1602040), (310, 1281632), (320, 1241581), (331, 1200320), (341, 1165120), (352, 1128710), (440, 902968), (484, 820880), (496, 801020), (605, 656704), (620, 640816), (662, 600160), (682, 582560), (704, 564355), (880, 451484), (968, 410440), (992, 400510), (1210, 328352), (1240, 320408), (1324, 300080), (1364, 291280), (1655, 240064), (1705, 233024), (1760, 225742), (1936, 205220), (1984, 200255), (2420, 164176), (2480, 160204), (2648, 150040), (2728, 145640), (3310, 120032), (3410, 116512), (3520, 112871), (3641, 109120), (3751, 105920), (3872, 102610), (4840, 82088), (4960, 80102), (5296, 75020), (5456, 72820), (6620, 60016), (6820, 58256), (7282, 54560), (7502, 52960), (7744, 51305), (9680, 41044), (9920, 40051), (10261, 38720), (10592, 37510), (10912, 36410), (13240, 30008), (13640, 29128), (14564, 27280), (15004, 26480), (18205, 21824), (18755, 21184), (19360, 20522)]