208602020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8699}}^1$

素因数の和:8828

約数の個数: 48

約数和(自身を含む): 482328000

約数和(自身を除く): 273725980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 8699, 11990, 17398, 23980, 34796, 43495, 86990, 95689, 173980, 191378, 382756, 478445, 948191, 956890, 1896382, 1913780, 3792764, 4740955, 9481910, 10430101, 18963820, 20860202, 41720404, 52150505, 104301010, 208602020]

約数ペア:

[(1, 208602020), (2, 104301010), (4, 52150505), (5, 41720404), (10, 20860202), (11, 18963820), (20, 10430101), (22, 9481910), (44, 4740955), (55, 3792764), (109, 1913780), (110, 1896382), (218, 956890), (220, 948191), (436, 478445), (545, 382756), (1090, 191378), (1199, 173980), (2180, 95689), (2398, 86990), (4796, 43495), (5995, 34796), (8699, 23980), (11990, 17398)]