205591875

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 374880000

約数和(自身を除く): 169288125

約数列:

[1, 3, 5, 15, 19, 25, 29, 57, 75, 87, 95, 125, 145, 199, 285, 375, 435, 475, 551, 597, 625, 725, 995, 1425, 1653, 1875, 2175, 2375, 2755, 2985, 3625, 3781, 4975, 5771, 7125, 8265, 10875, 11343, 11875, 13775, 14925, 17313, 18125, 18905, 24875, 28855, 35625, 41325, 54375, 56715, 68875, 74625, 86565, 94525, 109649, 124375, 144275, 206625, 283575, 328947, 344375, 373125, 432825, 472625, 548245, 721375, 1033125, 1417875, 1644735, 2164125, 2363125, 2741225, 3606875, 7089375, 8223675, 10820625, 13706125, 41118375, 68530625, 205591875]

約数ペア:

[(1, 205591875), (3, 68530625), (5, 41118375), (15, 13706125), (19, 10820625), (25, 8223675), (29, 7089375), (57, 3606875), (75, 2741225), (87, 2363125), (95, 2164125), (125, 1644735), (145, 1417875), (199, 1033125), (285, 721375), (375, 548245), (435, 472625), (475, 432825), (551, 373125), (597, 344375), (625, 328947), (725, 283575), (995, 206625), (1425, 144275), (1653, 124375), (1875, 109649), (2175, 94525), (2375, 86565), (2755, 74625), (2985, 68875), (3625, 56715), (3781, 54375), (4975, 41325), (5771, 35625), (7125, 28855), (8265, 24875), (10875, 18905), (11343, 18125), (11875, 17313), (13775, 14925)]