4390520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 10692000

約数和(自身を除く): 6301480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 109, 152, 190, 212, 218, 265, 380, 424, 436, 530, 545, 760, 872, 1007, 1060, 1090, 2014, 2071, 2120, 2180, 4028, 4142, 4360, 5035, 5777, 8056, 8284, 10070, 10355, 11554, 16568, 20140, 20710, 23108, 28885, 40280, 41420, 46216, 57770, 82840, 109763, 115540, 219526, 231080, 439052, 548815, 878104, 1097630, 2195260, 4390520]

約数ペア:

[(1, 4390520), (2, 2195260), (4, 1097630), (5, 878104), (8, 548815), (10, 439052), (19, 231080), (20, 219526), (38, 115540), (40, 109763), (53, 82840), (76, 57770), (95, 46216), (106, 41420), (109, 40280), (152, 28885), (190, 23108), (212, 20710), (218, 20140), (265, 16568), (380, 11554), (424, 10355), (436, 10070), (530, 8284), (545, 8056), (760, 5777), (872, 5035), (1007, 4360), (1060, 4142), (1090, 4028), (2014, 2180), (2071, 2120)]