25221720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2081}}^1$

素因数の和:2196

約数の個数: 64

約数和(自身を含む): 76451040

約数和(自身を除く): 51229320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 101, 120, 202, 303, 404, 505, 606, 808, 1010, 1212, 1515, 2020, 2081, 2424, 3030, 4040, 4162, 6060, 6243, 8324, 10405, 12120, 12486, 16648, 20810, 24972, 31215, 41620, 49944, 62430, 83240, 124860, 210181, 249720, 420362, 630543, 840724, 1050905, 1261086, 1681448, 2101810, 2522172, 3152715, 4203620, 5044344, 6305430, 8407240, 12610860, 25221720]

約数ペア:

[(1, 25221720), (2, 12610860), (3, 8407240), (4, 6305430), (5, 5044344), (6, 4203620), (8, 3152715), (10, 2522172), (12, 2101810), (15, 1681448), (20, 1261086), (24, 1050905), (30, 840724), (40, 630543), (60, 420362), (101, 249720), (120, 210181), (202, 124860), (303, 83240), (404, 62430), (505, 49944), (606, 41620), (808, 31215), (1010, 24972), (1212, 20810), (1515, 16648), (2020, 12486), (2081, 12120), (2424, 10405), (3030, 8324), (4040, 6243), (4162, 6060)]