72811375

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 115524864

約数和(自身を除く): 42713489

約数列:

[1, 5, 7, 13, 25, 35, 37, 65, 91, 125, 173, 175, 185, 259, 325, 455, 481, 865, 875, 925, 1211, 1295, 1625, 2249, 2275, 2405, 3367, 4325, 4625, 6055, 6401, 6475, 11245, 11375, 12025, 15743, 16835, 21625, 30275, 32005, 32375, 44807, 56225, 60125, 78715, 83213, 84175, 151375, 160025, 224035, 281125, 393575, 416065, 420875, 582491, 800125, 1120175, 1967875, 2080325, 2912455, 5600875, 10401625, 14562275, 72811375]

約数ペア:

[(1, 72811375), (5, 14562275), (7, 10401625), (13, 5600875), (25, 2912455), (35, 2080325), (37, 1967875), (65, 1120175), (91, 800125), (125, 582491), (173, 420875), (175, 416065), (185, 393575), (259, 281125), (325, 224035), (455, 160025), (481, 151375), (865, 84175), (875, 83213), (925, 78715), (1211, 60125), (1295, 56225), (1625, 44807), (2249, 32375), (2275, 32005), (2405, 30275), (3367, 21625), (4325, 16835), (4625, 15743), (6055, 12025), (6401, 11375), (6475, 11245)]