7998390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{491}}^1$

素因数の和:685

約数の個数: 48

約数和(自身を含む): 20953296

約数和(自身を除く): 12954906

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 181, 362, 491, 543, 905, 982, 1086, 1473, 1629, 1810, 2455, 2715, 2946, 3258, 4419, 4910, 5430, 7365, 8145, 8838, 14730, 16290, 22095, 44190, 88871, 177742, 266613, 444355, 533226, 799839, 888710, 1333065, 1599678, 2666130, 3999195, 7998390]

約数ペア:

[(1, 7998390), (2, 3999195), (3, 2666130), (5, 1599678), (6, 1333065), (9, 888710), (10, 799839), (15, 533226), (18, 444355), (30, 266613), (45, 177742), (90, 88871), (181, 44190), (362, 22095), (491, 16290), (543, 14730), (905, 8838), (982, 8145), (1086, 7365), (1473, 5430), (1629, 4910), (1810, 4419), (2455, 3258), (2715, 2946)]