100870820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{929}}^1$

素因数の和:1088

約数の個数: 48

約数和(自身を含む): 217954800

約数和(自身を除く): 117083980

約数列:

[1, 2, 4, 5, 10, 20, 61, 89, 122, 178, 244, 305, 356, 445, 610, 890, 929, 1220, 1780, 1858, 3716, 4645, 5429, 9290, 10858, 18580, 21716, 27145, 54290, 56669, 82681, 108580, 113338, 165362, 226676, 283345, 330724, 413405, 566690, 826810, 1133380, 1653620, 5043541, 10087082, 20174164, 25217705, 50435410, 100870820]

約数ペア:

[(1, 100870820), (2, 50435410), (4, 25217705), (5, 20174164), (10, 10087082), (20, 5043541), (61, 1653620), (89, 1133380), (122, 826810), (178, 566690), (244, 413405), (305, 330724), (356, 283345), (445, 226676), (610, 165362), (890, 113338), (929, 108580), (1220, 82681), (1780, 56669), (1858, 54290), (3716, 27145), (4645, 21716), (5429, 18580), (9290, 10858)]