121938440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{557}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 296699760

約数和(自身を除く): 174761320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 421, 520, 557, 842, 1114, 1684, 2105, 2228, 2785, 3368, 4210, 4456, 5473, 5570, 7241, 8420, 10946, 11140, 14482, 16840, 21892, 22280, 27365, 28964, 36205, 43784, 54730, 57928, 72410, 109460, 144820, 218920, 234497, 289640, 468994, 937988, 1172485, 1875976, 2344970, 3048461, 4689940, 6096922, 9379880, 12193844, 15242305, 24387688, 30484610, 60969220, 121938440]

約数ペア:

[(1, 121938440), (2, 60969220), (4, 30484610), (5, 24387688), (8, 15242305), (10, 12193844), (13, 9379880), (20, 6096922), (26, 4689940), (40, 3048461), (52, 2344970), (65, 1875976), (104, 1172485), (130, 937988), (260, 468994), (421, 289640), (520, 234497), (557, 218920), (842, 144820), (1114, 109460), (1684, 72410), (2105, 57928), (2228, 54730), (2785, 43784), (3368, 36205), (4210, 28964), (4456, 27365), (5473, 22280), (5570, 21892), (7241, 16840), (8420, 14482), (10946, 11140)]