909969125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 1294465536

約数和(自身を除く): 384496411

約数列:

[1, 5, 13, 23, 25, 65, 97, 115, 125, 251, 299, 325, 485, 575, 1255, 1261, 1495, 1625, 2231, 2425, 2875, 3263, 5773, 6275, 6305, 7475, 11155, 12125, 16315, 24347, 28865, 29003, 31375, 31525, 37375, 55775, 75049, 81575, 121735, 144325, 145015, 157625, 278875, 316511, 375245, 407875, 559981, 608675, 721625, 725075, 1582555, 1876225, 2799905, 3043375, 3625375, 7279753, 7912775, 9381125, 13999525, 36398765, 39563875, 69997625, 181993825, 909969125]

約数ペア:

[(1, 909969125), (5, 181993825), (13, 69997625), (23, 39563875), (25, 36398765), (65, 13999525), (97, 9381125), (115, 7912775), (125, 7279753), (251, 3625375), (299, 3043375), (325, 2799905), (485, 1876225), (575, 1582555), (1255, 725075), (1261, 721625), (1495, 608675), (1625, 559981), (2231, 407875), (2425, 375245), (2875, 316511), (3263, 278875), (5773, 157625), (6275, 145015), (6305, 144325), (7475, 121735), (11155, 81575), (12125, 75049), (16315, 55775), (24347, 37375), (28865, 31525), (29003, 31375)]