28495840

素因数分解:

$2^5\times 5^1\times {\mathrm{241}}^1\times {\mathrm{739}}^1$

素因数の和:995

約数の個数: 48

約数和(自身を含む): 67692240

約数和(自身を除く): 39196400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 241, 482, 739, 964, 1205, 1478, 1928, 2410, 2956, 3695, 3856, 4820, 5912, 7390, 7712, 9640, 11824, 14780, 19280, 23648, 29560, 38560, 59120, 118240, 178099, 356198, 712396, 890495, 1424792, 1780990, 2849584, 3561980, 5699168, 7123960, 14247920, 28495840]

約数ペア:

[(1, 28495840), (2, 14247920), (4, 7123960), (5, 5699168), (8, 3561980), (10, 2849584), (16, 1780990), (20, 1424792), (32, 890495), (40, 712396), (80, 356198), (160, 178099), (241, 118240), (482, 59120), (739, 38560), (964, 29560), (1205, 23648), (1478, 19280), (1928, 14780), (2410, 11824), (2956, 9640), (3695, 7712), (3856, 7390), (4820, 5912)]