90027920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1249}}^1$

素因数の和:1332

約数の個数: 80

約数和(自身を含む): 225990000

約数和(自身を除く): 135962080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 53, 68, 80, 85, 106, 136, 170, 212, 265, 272, 340, 424, 530, 680, 848, 901, 1060, 1249, 1360, 1802, 2120, 2498, 3604, 4240, 4505, 4996, 6245, 7208, 9010, 9992, 12490, 14416, 18020, 19984, 21233, 24980, 36040, 42466, 49960, 66197, 72080, 84932, 99920, 106165, 132394, 169864, 212330, 264788, 330985, 339728, 424660, 529576, 661970, 849320, 1059152, 1125349, 1323940, 1698640, 2250698, 2647880, 4501396, 5295760, 5626745, 9002792, 11253490, 18005584, 22506980, 45013960, 90027920]

約数ペア:

[(1, 90027920), (2, 45013960), (4, 22506980), (5, 18005584), (8, 11253490), (10, 9002792), (16, 5626745), (17, 5295760), (20, 4501396), (34, 2647880), (40, 2250698), (53, 1698640), (68, 1323940), (80, 1125349), (85, 1059152), (106, 849320), (136, 661970), (170, 529576), (212, 424660), (265, 339728), (272, 330985), (340, 264788), (424, 212330), (530, 169864), (680, 132394), (848, 106165), (901, 99920), (1060, 84932), (1249, 72080), (1360, 66197), (1802, 49960), (2120, 42466), (2498, 36040), (3604, 24980), (4240, 21233), (4505, 19984), (4996, 18020), (6245, 14416), (7208, 12490), (9010, 9992)]