87439220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12821}}^1$

素因数の和:12872

約数の個数: 48

約数和(自身を含む): 206793216

約数和(自身を除く): 119353996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 12821, 25642, 51284, 64105, 128210, 141031, 256420, 282062, 397451, 564124, 705155, 794902, 1410310, 1589804, 1987255, 2820620, 3974510, 4371961, 7949020, 8743922, 17487844, 21859805, 43719610, 87439220]

約数ペア:

[(1, 87439220), (2, 43719610), (4, 21859805), (5, 17487844), (10, 8743922), (11, 7949020), (20, 4371961), (22, 3974510), (31, 2820620), (44, 1987255), (55, 1589804), (62, 1410310), (110, 794902), (124, 705155), (155, 564124), (220, 397451), (310, 282062), (341, 256420), (620, 141031), (682, 128210), (1364, 64105), (1705, 51284), (3410, 25642), (6820, 12821)]