880367620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{28789}}^1$

素因数の和:28948

約数の個数: 48

約数和(自身を含む): 2031422400

約数和(自身を除く): 1151054780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1390, 1529, 2780, 3058, 6116, 7645, 15290, 28789, 30580, 57578, 115156, 143945, 287890, 316679, 575780, 633358, 1266716, 1583395, 3166790, 4001671, 6333580, 8003342, 16006684, 20008355, 40016710, 44018381, 80033420, 88036762, 176073524, 220091905, 440183810, 880367620]

約数ペア:

[(1, 880367620), (2, 440183810), (4, 220091905), (5, 176073524), (10, 88036762), (11, 80033420), (20, 44018381), (22, 40016710), (44, 20008355), (55, 16006684), (110, 8003342), (139, 6333580), (220, 4001671), (278, 3166790), (556, 1583395), (695, 1266716), (1390, 633358), (1529, 575780), (2780, 316679), (3058, 287890), (6116, 143945), (7645, 115156), (15290, 57578), (28789, 30580)]