72812920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 168544800

約数和(自身を除く): 95731880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 101, 134, 202, 268, 269, 335, 404, 505, 536, 538, 670, 808, 1010, 1076, 1340, 1345, 2020, 2152, 2680, 2690, 4040, 5380, 6767, 10760, 13534, 18023, 27068, 27169, 33835, 36046, 54136, 54338, 67670, 72092, 90115, 108676, 135340, 135845, 144184, 180230, 217352, 270680, 271690, 360460, 543380, 720920, 1086760, 1820323, 3640646, 7281292, 9101615, 14562584, 18203230, 36406460, 72812920]

約数ペア:

[(1, 72812920), (2, 36406460), (4, 18203230), (5, 14562584), (8, 9101615), (10, 7281292), (20, 3640646), (40, 1820323), (67, 1086760), (101, 720920), (134, 543380), (202, 360460), (268, 271690), (269, 270680), (335, 217352), (404, 180230), (505, 144184), (536, 135845), (538, 135340), (670, 108676), (808, 90115), (1010, 72092), (1076, 67670), (1340, 54338), (1345, 54136), (2020, 36046), (2152, 33835), (2680, 27169), (2690, 27068), (4040, 18023), (5380, 13534), (6767, 10760)]