905840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1$

素因数の和:106

約数の個数: 60

約数和(自身を含む): 2314584

約数和(自身を除く): 1408744

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 169, 208, 260, 268, 335, 338, 520, 536, 670, 676, 845, 871, 1040, 1072, 1340, 1352, 1690, 1742, 2680, 2704, 3380, 3484, 4355, 5360, 6760, 6968, 8710, 11323, 13520, 13936, 17420, 22646, 34840, 45292, 56615, 69680, 90584, 113230, 181168, 226460, 452920, 905840]

約数ペア:

[(1, 905840), (2, 452920), (4, 226460), (5, 181168), (8, 113230), (10, 90584), (13, 69680), (16, 56615), (20, 45292), (26, 34840), (40, 22646), (52, 17420), (65, 13936), (67, 13520), (80, 11323), (104, 8710), (130, 6968), (134, 6760), (169, 5360), (208, 4355), (260, 3484), (268, 3380), (335, 2704), (338, 2680), (520, 1742), (536, 1690), (670, 1352), (676, 1340), (845, 1072), (871, 1040)]