28765360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1627}}^1$

素因数の和:1670

約数の個数: 80

約数和(自身を含む): 76307616

約数和(自身を除く): 47542256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1627, 1768, 2210, 3254, 3536, 4420, 6508, 8135, 8840, 13016, 16270, 17680, 21151, 26032, 27659, 32540, 42302, 55318, 65080, 84604, 105755, 110636, 130160, 138295, 169208, 211510, 221272, 276590, 338416, 359567, 423020, 442544, 553180, 719134, 846040, 1106360, 1438268, 1692080, 1797835, 2212720, 2876536, 3595670, 5753072, 7191340, 14382680, 28765360]

約数ペア:

[(1, 28765360), (2, 14382680), (4, 7191340), (5, 5753072), (8, 3595670), (10, 2876536), (13, 2212720), (16, 1797835), (17, 1692080), (20, 1438268), (26, 1106360), (34, 846040), (40, 719134), (52, 553180), (65, 442544), (68, 423020), (80, 359567), (85, 338416), (104, 276590), (130, 221272), (136, 211510), (170, 169208), (208, 138295), (221, 130160), (260, 110636), (272, 105755), (340, 84604), (442, 65080), (520, 55318), (680, 42302), (884, 32540), (1040, 27659), (1105, 26032), (1360, 21151), (1627, 17680), (1768, 16270), (2210, 13016), (3254, 8840), (3536, 8135), (4420, 6508)]