1972364380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{198427}}^1$

素因数の和:198514

約数の個数: 48

約数和(自身を含む): 4800370176

約数和(自身を除く): 2828005796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 198427, 396854, 793708, 992135, 1388989, 1984270, 2777978, 3968540, 5555956, 6944945, 13889890, 14088317, 27779780, 28176634, 56353268, 70441585, 98618219, 140883170, 197236438, 281766340, 394472876, 493091095, 986182190, 1972364380]

約数ペア:

[(1, 1972364380), (2, 986182190), (4, 493091095), (5, 394472876), (7, 281766340), (10, 197236438), (14, 140883170), (20, 98618219), (28, 70441585), (35, 56353268), (70, 28176634), (71, 27779780), (140, 14088317), (142, 13889890), (284, 6944945), (355, 5555956), (497, 3968540), (710, 2777978), (994, 1984270), (1420, 1388989), (1988, 992135), (2485, 793708), (4970, 396854), (9940, 198427)]