20187461950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{183439}}^1$

素因数の和:183553

約数の個数: 48

約数和(自身を含む): 39306055680

約数和(自身を除く): 19118593730

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 71, 142, 155, 310, 355, 710, 775, 1550, 1775, 2201, 3550, 4402, 11005, 22010, 55025, 110050, 183439, 366878, 917195, 1834390, 4585975, 5686609, 9171950, 11373218, 13024169, 26048338, 28433045, 56866090, 65120845, 130241690, 142165225, 284330450, 325604225, 403749239, 651208450, 807498478, 2018746195, 4037492390, 10093730975, 20187461950]

約数ペア:

[(1, 20187461950), (2, 10093730975), (5, 4037492390), (10, 2018746195), (25, 807498478), (31, 651208450), (50, 403749239), (62, 325604225), (71, 284330450), (142, 142165225), (155, 130241690), (310, 65120845), (355, 56866090), (710, 28433045), (775, 26048338), (1550, 13024169), (1775, 11373218), (2201, 9171950), (3550, 5686609), (4402, 4585975), (11005, 1834390), (22010, 917195), (55025, 366878), (110050, 183439)]