64909520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4801}}^1$

素因数の和:4840

約数の個数: 60

約数和(自身を含む): 163450476

約数和(自身を除く): 98540956

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 4801, 6760, 9602, 13520, 19204, 24005, 38408, 48010, 62413, 76816, 96020, 124826, 192040, 249652, 312065, 384080, 499304, 624130, 811369, 998608, 1248260, 1622738, 2496520, 3245476, 4056845, 4993040, 6490952, 8113690, 12981904, 16227380, 32454760, 64909520]

約数ペア:

[(1, 64909520), (2, 32454760), (4, 16227380), (5, 12981904), (8, 8113690), (10, 6490952), (13, 4993040), (16, 4056845), (20, 3245476), (26, 2496520), (40, 1622738), (52, 1248260), (65, 998608), (80, 811369), (104, 624130), (130, 499304), (169, 384080), (208, 312065), (260, 249652), (338, 192040), (520, 124826), (676, 96020), (845, 76816), (1040, 62413), (1352, 48010), (1690, 38408), (2704, 24005), (3380, 19204), (4801, 13520), (6760, 9602)]