31135000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:518

約数の個数: 80

約数和(自身を含む): 78724800

約数和(自身を除く): 47589800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 479, 500, 520, 625, 650, 958, 1000, 1250, 1300, 1625, 1916, 2395, 2500, 2600, 3250, 3832, 4790, 5000, 6227, 6500, 8125, 9580, 11975, 12454, 13000, 16250, 19160, 23950, 24908, 31135, 32500, 47900, 49816, 59875, 62270, 65000, 95800, 119750, 124540, 155675, 239500, 249080, 299375, 311350, 479000, 598750, 622700, 778375, 1197500, 1245400, 1556750, 2395000, 3113500, 3891875, 6227000, 7783750, 15567500, 31135000]

約数ペア:

[(1, 31135000), (2, 15567500), (4, 7783750), (5, 6227000), (8, 3891875), (10, 3113500), (13, 2395000), (20, 1556750), (25, 1245400), (26, 1197500), (40, 778375), (50, 622700), (52, 598750), (65, 479000), (100, 311350), (104, 299375), (125, 249080), (130, 239500), (200, 155675), (250, 124540), (260, 119750), (325, 95800), (479, 65000), (500, 62270), (520, 59875), (625, 49816), (650, 47900), (958, 32500), (1000, 31135), (1250, 24908), (1300, 23950), (1625, 19160), (1916, 16250), (2395, 13000), (2500, 12454), (2600, 11975), (3250, 9580), (3832, 8125), (4790, 6500), (5000, 6227)]