66984320

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:212

約数の個数: 128

約数和(自身を含む): 176329440

約数和(自身を除く): 109345120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 83, 97, 104, 128, 130, 160, 166, 194, 208, 260, 320, 332, 388, 415, 416, 485, 520, 640, 664, 776, 830, 832, 970, 1040, 1079, 1261, 1328, 1552, 1660, 1664, 1940, 2080, 2158, 2522, 2656, 3104, 3320, 3880, 4160, 4316, 5044, 5312, 5395, 6208, 6305, 6640, 7760, 8051, 8320, 8632, 10088, 10624, 10790, 12416, 12610, 13280, 15520, 16102, 17264, 20176, 21580, 25220, 26560, 31040, 32204, 34528, 40255, 40352, 43160, 50440, 53120, 62080, 64408, 69056, 80510, 80704, 86320, 100880, 104663, 128816, 138112, 161020, 161408, 172640, 201760, 209326, 257632, 322040, 345280, 403520, 418652, 515264, 523315, 644080, 690560, 807040, 837304, 1030528, 1046630, 1288160, 1674608, 2093260, 2576320, 3349216, 4186520, 5152640, 6698432, 8373040, 13396864, 16746080, 33492160, 66984320]

約数ペア:

[(1, 66984320), (2, 33492160), (4, 16746080), (5, 13396864), (8, 8373040), (10, 6698432), (13, 5152640), (16, 4186520), (20, 3349216), (26, 2576320), (32, 2093260), (40, 1674608), (52, 1288160), (64, 1046630), (65, 1030528), (80, 837304), (83, 807040), (97, 690560), (104, 644080), (128, 523315), (130, 515264), (160, 418652), (166, 403520), (194, 345280), (208, 322040), (260, 257632), (320, 209326), (332, 201760), (388, 172640), (415, 161408), (416, 161020), (485, 138112), (520, 128816), (640, 104663), (664, 100880), (776, 86320), (830, 80704), (832, 80510), (970, 69056), (1040, 64408), (1079, 62080), (1261, 53120), (1328, 50440), (1552, 43160), (1660, 40352), (1664, 40255), (1940, 34528), (2080, 32204), (2158, 31040), (2522, 26560), (2656, 25220), (3104, 21580), (3320, 20176), (3880, 17264), (4160, 16102), (4316, 15520), (5044, 13280), (5312, 12610), (5395, 12416), (6208, 10790), (6305, 10624), (6640, 10088), (7760, 8632), (8051, 8320)]