64759870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{887}}^1$

素因数の和:1057

約数の個数: 48

約数和(自身を含む): 136663200

約数和(自身を除く): 71903330

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 149, 245, 298, 490, 745, 887, 1043, 1490, 1774, 2086, 4435, 5215, 6209, 7301, 8870, 10430, 12418, 14602, 31045, 36505, 43463, 62090, 73010, 86926, 132163, 217315, 264326, 434630, 660815, 925141, 1321630, 1850282, 4625705, 6475987, 9251410, 12951974, 32379935, 64759870]

約数ペア:

[(1, 64759870), (2, 32379935), (5, 12951974), (7, 9251410), (10, 6475987), (14, 4625705), (35, 1850282), (49, 1321630), (70, 925141), (98, 660815), (149, 434630), (245, 264326), (298, 217315), (490, 132163), (745, 86926), (887, 73010), (1043, 62090), (1490, 43463), (1774, 36505), (2086, 31045), (4435, 14602), (5215, 12418), (6209, 10430), (7301, 8870)]