20820865680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{19421}}^1$

素因数の和:20929

約数の個数: 120

約数和(自身を含む): 69973970040

約数和(自身を除く): 49153104360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 1489, 2978, 4467, 5956, 7445, 8934, 11912, 13401, 14890, 17868, 19421, 22335, 23824, 26802, 29780, 35736, 38842, 44670, 53604, 58263, 59560, 67005, 71472, 77684, 89340, 97105, 107208, 116526, 119120, 134010, 155368, 174789, 178680, 194210, 214416, 233052, 268020, 291315, 310736, 349578, 357360, 388420, 466104, 536040, 582630, 699156, 776840, 873945, 932208, 1072080, 1165260, 1398312, 1553680, 1747890, 2330520, 2796624, 3495780, 4661040, 6991560, 13983120, 28917869, 57835738, 86753607, 115671476, 144589345, 173507214, 231342952, 260260821, 289178690, 347014428, 433768035, 462685904, 520521642, 578357380, 694028856, 867536070, 1041043284, 1156714760, 1301304105, 1388057712, 1735072140, 2082086568, 2313429520, 2602608210, 3470144280, 4164173136, 5205216420, 6940288560, 10410432840, 20820865680]

約数ペア:

[(1, 20820865680), (2, 10410432840), (3, 6940288560), (4, 5205216420), (5, 4164173136), (6, 3470144280), (8, 2602608210), (9, 2313429520), (10, 2082086568), (12, 1735072140), (15, 1388057712), (16, 1301304105), (18, 1156714760), (20, 1041043284), (24, 867536070), (30, 694028856), (36, 578357380), (40, 520521642), (45, 462685904), (48, 433768035), (60, 347014428), (72, 289178690), (80, 260260821), (90, 231342952), (120, 173507214), (144, 144589345), (180, 115671476), (240, 86753607), (360, 57835738), (720, 28917869), (1489, 13983120), (2978, 6991560), (4467, 4661040), (5956, 3495780), (7445, 2796624), (8934, 2330520), (11912, 1747890), (13401, 1553680), (14890, 1398312), (17868, 1165260), (19421, 1072080), (22335, 932208), (23824, 873945), (26802, 776840), (29780, 699156), (35736, 582630), (38842, 536040), (44670, 466104), (53604, 388420), (58263, 357360), (59560, 349578), (67005, 310736), (71472, 291315), (77684, 268020), (89340, 233052), (97105, 214416), (107208, 194210), (116526, 178680), (119120, 174789), (134010, 155368)]