20010250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 41513472

約数和(自身を除く): 21503222

約数列:

[1, 2, 5, 10, 13, 25, 26, 47, 50, 65, 94, 125, 130, 131, 235, 250, 262, 325, 470, 611, 650, 655, 1175, 1222, 1310, 1625, 1703, 2350, 3055, 3250, 3275, 3406, 5875, 6110, 6157, 6550, 8515, 11750, 12314, 15275, 16375, 17030, 30550, 30785, 32750, 42575, 61570, 76375, 80041, 85150, 152750, 153925, 160082, 212875, 307850, 400205, 425750, 769625, 800410, 1539250, 2001025, 4002050, 10005125, 20010250]

約数ペア:

[(1, 20010250), (2, 10005125), (5, 4002050), (10, 2001025), (13, 1539250), (25, 800410), (26, 769625), (47, 425750), (50, 400205), (65, 307850), (94, 212875), (125, 160082), (130, 153925), (131, 152750), (235, 85150), (250, 80041), (262, 76375), (325, 61570), (470, 42575), (611, 32750), (650, 30785), (655, 30550), (1175, 17030), (1222, 16375), (1310, 15275), (1625, 12314), (1703, 11750), (2350, 8515), (3055, 6550), (3250, 6157), (3275, 6110), (3406, 5875)]