201421880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{14767}}^1$

素因数の和:14820

約数の個数: 64

約数和(自身を含む): 510382080

約数和(自身を除く): 308960200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 14767, 29534, 59068, 73835, 118136, 147670, 162437, 295340, 324874, 457777, 590680, 649748, 812185, 915554, 1299496, 1624370, 1831108, 2288885, 3248740, 3662216, 4577770, 5035547, 6497480, 9155540, 10071094, 18311080, 20142188, 25177735, 40284376, 50355470, 100710940, 201421880]

約数ペア:

[(1, 201421880), (2, 100710940), (4, 50355470), (5, 40284376), (8, 25177735), (10, 20142188), (11, 18311080), (20, 10071094), (22, 9155540), (31, 6497480), (40, 5035547), (44, 4577770), (55, 3662216), (62, 3248740), (88, 2288885), (110, 1831108), (124, 1624370), (155, 1299496), (220, 915554), (248, 812185), (310, 649748), (341, 590680), (440, 457777), (620, 324874), (682, 295340), (1240, 162437), (1364, 147670), (1705, 118136), (2728, 73835), (3410, 59068), (6820, 29534), (13640, 14767)]