25645880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{331}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 62748000

約数和(自身を除く): 37102120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 149, 260, 298, 331, 520, 596, 662, 745, 1192, 1324, 1490, 1655, 1937, 2648, 2980, 3310, 3874, 4303, 5960, 6620, 7748, 8606, 9685, 13240, 15496, 17212, 19370, 21515, 34424, 38740, 43030, 49319, 77480, 86060, 98638, 172120, 197276, 246595, 394552, 493190, 641147, 986380, 1282294, 1972760, 2564588, 3205735, 5129176, 6411470, 12822940, 25645880]

約数ペア:

[(1, 25645880), (2, 12822940), (4, 6411470), (5, 5129176), (8, 3205735), (10, 2564588), (13, 1972760), (20, 1282294), (26, 986380), (40, 641147), (52, 493190), (65, 394552), (104, 246595), (130, 197276), (149, 172120), (260, 98638), (298, 86060), (331, 77480), (520, 49319), (596, 43030), (662, 38740), (745, 34424), (1192, 21515), (1324, 19370), (1490, 17212), (1655, 15496), (1937, 13240), (2648, 9685), (2980, 8606), (3310, 7748), (3874, 6620), (4303, 5960)]