25578280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7027}}^1$

素因数の和:7058

約数の個数: 64

約数和(自身を含む): 70842240

約数和(自身を除く): 45263960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7027, 14054, 28108, 35135, 49189, 56216, 70270, 91351, 98378, 140540, 182702, 196756, 245945, 281080, 365404, 393512, 456755, 491890, 639457, 730808, 913510, 983780, 1278914, 1827020, 1967560, 2557828, 3197285, 3654040, 5115656, 6394570, 12789140, 25578280]

約数ペア:

[(1, 25578280), (2, 12789140), (4, 6394570), (5, 5115656), (7, 3654040), (8, 3197285), (10, 2557828), (13, 1967560), (14, 1827020), (20, 1278914), (26, 983780), (28, 913510), (35, 730808), (40, 639457), (52, 491890), (56, 456755), (65, 393512), (70, 365404), (91, 281080), (104, 245945), (130, 196756), (140, 182702), (182, 140540), (260, 98378), (280, 91351), (364, 70270), (455, 56216), (520, 49189), (728, 35135), (910, 28108), (1820, 14054), (3640, 7027)]