68841560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 164160000

約数和(自身を除く): 95318440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 239, 379, 380, 478, 758, 760, 956, 1195, 1516, 1895, 1912, 2390, 3032, 3790, 4541, 4780, 7201, 7580, 9082, 9560, 14402, 15160, 18164, 22705, 28804, 36005, 36328, 45410, 57608, 72010, 90581, 90820, 144020, 181162, 181640, 288040, 362324, 452905, 724648, 905810, 1721039, 1811620, 3442078, 3623240, 6884156, 8605195, 13768312, 17210390, 34420780, 68841560]

約数ペア:

[(1, 68841560), (2, 34420780), (4, 17210390), (5, 13768312), (8, 8605195), (10, 6884156), (19, 3623240), (20, 3442078), (38, 1811620), (40, 1721039), (76, 905810), (95, 724648), (152, 452905), (190, 362324), (239, 288040), (379, 181640), (380, 181162), (478, 144020), (758, 90820), (760, 90581), (956, 72010), (1195, 57608), (1516, 45410), (1895, 36328), (1912, 36005), (2390, 28804), (3032, 22705), (3790, 18164), (4541, 15160), (4780, 14402), (7201, 9560), (7580, 9082)]