25413820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 55808928

約数和(自身を除く): 30395108

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 563, 610, 740, 1126, 1220, 2252, 2257, 2815, 4514, 5630, 9028, 11260, 11285, 20831, 22570, 34343, 41662, 45140, 68686, 83324, 104155, 137372, 171715, 208310, 343430, 416620, 686860, 1270691, 2541382, 5082764, 6353455, 12706910, 25413820]

約数ペア:

[(1, 25413820), (2, 12706910), (4, 6353455), (5, 5082764), (10, 2541382), (20, 1270691), (37, 686860), (61, 416620), (74, 343430), (122, 208310), (148, 171715), (185, 137372), (244, 104155), (305, 83324), (370, 68686), (563, 45140), (610, 41662), (740, 34343), (1126, 22570), (1220, 20831), (2252, 11285), (2257, 11260), (2815, 9028), (4514, 5630)]