28258750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 80

約数和(自身を含む): 59830848

約数和(自身を除く): 31572098

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 47, 50, 65, 74, 94, 125, 130, 185, 235, 250, 325, 370, 470, 481, 611, 625, 650, 925, 962, 1175, 1222, 1250, 1625, 1739, 1850, 2350, 2405, 3055, 3250, 3478, 4625, 4810, 5875, 6110, 8125, 8695, 9250, 11750, 12025, 15275, 16250, 17390, 22607, 23125, 24050, 29375, 30550, 43475, 45214, 46250, 58750, 60125, 76375, 86950, 113035, 120250, 152750, 217375, 226070, 300625, 381875, 434750, 565175, 601250, 763750, 1086875, 1130350, 2173750, 2825875, 5651750, 14129375, 28258750]

約数ペア:

[(1, 28258750), (2, 14129375), (5, 5651750), (10, 2825875), (13, 2173750), (25, 1130350), (26, 1086875), (37, 763750), (47, 601250), (50, 565175), (65, 434750), (74, 381875), (94, 300625), (125, 226070), (130, 217375), (185, 152750), (235, 120250), (250, 113035), (325, 86950), (370, 76375), (470, 60125), (481, 58750), (611, 46250), (625, 45214), (650, 43475), (925, 30550), (962, 29375), (1175, 24050), (1222, 23125), (1250, 22607), (1625, 17390), (1739, 16250), (1850, 15275), (2350, 12025), (2405, 11750), (3055, 9250), (3250, 8695), (3478, 8125), (4625, 6110), (4810, 5875)]