31573425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 58817664

約数和(自身を除く): 27244239

約数列:

[1, 3, 5, 13, 15, 25, 39, 47, 53, 65, 75, 141, 159, 169, 195, 235, 265, 325, 507, 611, 689, 705, 795, 845, 975, 1175, 1325, 1833, 2067, 2491, 2535, 3055, 3445, 3525, 3975, 4225, 7473, 7943, 8957, 9165, 10335, 12455, 12675, 15275, 17225, 23829, 26871, 32383, 37365, 39715, 44785, 45825, 51675, 62275, 97149, 119145, 134355, 161915, 186825, 198575, 223925, 420979, 485745, 595725, 671775, 809575, 1262937, 2104895, 2428725, 6314685, 10524475, 31573425]

約数ペア:

[(1, 31573425), (3, 10524475), (5, 6314685), (13, 2428725), (15, 2104895), (25, 1262937), (39, 809575), (47, 671775), (53, 595725), (65, 485745), (75, 420979), (141, 223925), (159, 198575), (169, 186825), (195, 161915), (235, 134355), (265, 119145), (325, 97149), (507, 62275), (611, 51675), (689, 45825), (705, 44785), (795, 39715), (845, 37365), (975, 32383), (1175, 26871), (1325, 23829), (1833, 17225), (2067, 15275), (2491, 12675), (2535, 12455), (3055, 10335), (3445, 9165), (3525, 8957), (3975, 7943), (4225, 7473)]