72654520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:904

約数の個数: 64

約数和(自身を含む): 170644320

約数和(自身を除く): 97989800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 797, 860, 1060, 1594, 1720, 2120, 2279, 3188, 3985, 4558, 6376, 7970, 9116, 11395, 15940, 18232, 22790, 31880, 34271, 42241, 45580, 68542, 84482, 91160, 137084, 168964, 171355, 211205, 274168, 337928, 342710, 422410, 685420, 844820, 1370840, 1689640, 1816363, 3632726, 7265452, 9081815, 14530904, 18163630, 36327260, 72654520]

約数ペア:

[(1, 72654520), (2, 36327260), (4, 18163630), (5, 14530904), (8, 9081815), (10, 7265452), (20, 3632726), (40, 1816363), (43, 1689640), (53, 1370840), (86, 844820), (106, 685420), (172, 422410), (212, 342710), (215, 337928), (265, 274168), (344, 211205), (424, 171355), (430, 168964), (530, 137084), (797, 91160), (860, 84482), (1060, 68542), (1594, 45580), (1720, 42241), (2120, 34271), (2279, 31880), (3188, 22790), (3985, 18232), (4558, 15940), (6376, 11395), (7970, 9116)]