126398440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{64489}}^1$

素因数の和:64514

約数の個数: 48

約数和(自身を含む): 330833700

約数和(自身を除く): 204435260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 64489, 128978, 257956, 322445, 451423, 515912, 644890, 902846, 1289780, 1805692, 2257115, 2579560, 3159961, 3611384, 4514230, 6319922, 9028460, 12639844, 15799805, 18056920, 25279688, 31599610, 63199220, 126398440]

約数ペア:

[(1, 126398440), (2, 63199220), (4, 31599610), (5, 25279688), (7, 18056920), (8, 15799805), (10, 12639844), (14, 9028460), (20, 6319922), (28, 4514230), (35, 3611384), (40, 3159961), (49, 2579560), (56, 2257115), (70, 1805692), (98, 1289780), (140, 902846), (196, 644890), (245, 515912), (280, 451423), (392, 322445), (490, 257956), (980, 128978), (1960, 64489)]