128840805

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4861}}^1$

素因数の和:4922

約数の個数: 48

約数和(自身を含む): 242711040

約数和(自身を除く): 113870235

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 155, 171, 279, 285, 465, 589, 855, 1395, 1767, 2945, 4861, 5301, 8835, 14583, 24305, 26505, 43749, 72915, 92359, 150691, 218745, 277077, 452073, 461795, 753455, 831231, 1356219, 1385385, 2260365, 2863129, 4156155, 6781095, 8589387, 14315645, 25768161, 42946935, 128840805]

約数ペア:

[(1, 128840805), (3, 42946935), (5, 25768161), (9, 14315645), (15, 8589387), (19, 6781095), (31, 4156155), (45, 2863129), (57, 2260365), (93, 1385385), (95, 1356219), (155, 831231), (171, 753455), (279, 461795), (285, 452073), (465, 277077), (589, 218745), (855, 150691), (1395, 92359), (1767, 72915), (2945, 43749), (4861, 26505), (5301, 24305), (8835, 14583)]