400556208

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20707}}^1$

素因数の和:20762

約数の個数: 80

約数和(自身を含む): 1150370816

約数和(自身を除く): 749814608

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 39, 48, 52, 62, 78, 93, 104, 124, 156, 186, 208, 248, 312, 372, 403, 496, 624, 744, 806, 1209, 1488, 1612, 2418, 3224, 4836, 6448, 9672, 19344, 20707, 41414, 62121, 82828, 124242, 165656, 248484, 269191, 331312, 496968, 538382, 641917, 807573, 993936, 1076764, 1283834, 1615146, 1925751, 2153528, 2567668, 3230292, 3851502, 4307056, 5135336, 6460584, 7703004, 8344921, 10270672, 12921168, 15406008, 16689842, 25034763, 30812016, 33379684, 50069526, 66759368, 100139052, 133518736, 200278104, 400556208]

約数ペア:

[(1, 400556208), (2, 200278104), (3, 133518736), (4, 100139052), (6, 66759368), (8, 50069526), (12, 33379684), (13, 30812016), (16, 25034763), (24, 16689842), (26, 15406008), (31, 12921168), (39, 10270672), (48, 8344921), (52, 7703004), (62, 6460584), (78, 5135336), (93, 4307056), (104, 3851502), (124, 3230292), (156, 2567668), (186, 2153528), (208, 1925751), (248, 1615146), (312, 1283834), (372, 1076764), (403, 993936), (496, 807573), (624, 641917), (744, 538382), (806, 496968), (1209, 331312), (1488, 269191), (1612, 248484), (2418, 165656), (3224, 124242), (4836, 82828), (6448, 62121), (9672, 41414), (19344, 20707)]