31318040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{263}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 76507200

約数和(自身を除く): 45189160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 229, 260, 263, 458, 520, 526, 916, 1052, 1145, 1315, 1832, 2104, 2290, 2630, 2977, 3419, 4580, 5260, 5954, 6838, 9160, 10520, 11908, 13676, 14885, 17095, 23816, 27352, 29770, 34190, 59540, 60227, 68380, 119080, 120454, 136760, 240908, 301135, 481816, 602270, 782951, 1204540, 1565902, 2409080, 3131804, 3914755, 6263608, 7829510, 15659020, 31318040]

約数ペア:

[(1, 31318040), (2, 15659020), (4, 7829510), (5, 6263608), (8, 3914755), (10, 3131804), (13, 2409080), (20, 1565902), (26, 1204540), (40, 782951), (52, 602270), (65, 481816), (104, 301135), (130, 240908), (229, 136760), (260, 120454), (263, 119080), (458, 68380), (520, 60227), (526, 59540), (916, 34190), (1052, 29770), (1145, 27352), (1315, 23816), (1832, 17095), (2104, 14885), (2290, 13676), (2630, 11908), (2977, 10520), (3419, 9160), (4580, 6838), (5260, 5954)]