90188780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3761}}^1$

素因数の和:3890

約数の個数: 48

約数和(自身を含む): 208565280

約数和(自身を除く): 118376500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 3761, 4796, 5995, 7522, 11990, 15044, 18805, 23980, 37610, 41371, 75220, 82742, 165484, 206855, 409949, 413710, 819898, 827420, 1639796, 2049745, 4099490, 4509439, 8198980, 9018878, 18037756, 22547195, 45094390, 90188780]

約数ペア:

[(1, 90188780), (2, 45094390), (4, 22547195), (5, 18037756), (10, 9018878), (11, 8198980), (20, 4509439), (22, 4099490), (44, 2049745), (55, 1639796), (109, 827420), (110, 819898), (218, 413710), (220, 409949), (436, 206855), (545, 165484), (1090, 82742), (1199, 75220), (2180, 41371), (2398, 37610), (3761, 23980), (4796, 18805), (5995, 15044), (7522, 11990)]