251936620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{1697}}^1$

素因数の和:2290

約数の個数: 48

約数和(自身を含む): 571098528

約数和(自身を除く): 319161908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 571, 1142, 1697, 2284, 2855, 3394, 5710, 6788, 7423, 8485, 11420, 14846, 16970, 22061, 29692, 33940, 37115, 44122, 74230, 88244, 110305, 148460, 220610, 441220, 968987, 1937974, 3875948, 4844935, 9689870, 12596831, 19379740, 25193662, 50387324, 62984155, 125968310, 251936620]

約数ペア:

[(1, 251936620), (2, 125968310), (4, 62984155), (5, 50387324), (10, 25193662), (13, 19379740), (20, 12596831), (26, 9689870), (52, 4844935), (65, 3875948), (130, 1937974), (260, 968987), (571, 441220), (1142, 220610), (1697, 148460), (2284, 110305), (2855, 88244), (3394, 74230), (5710, 44122), (6788, 37115), (7423, 33940), (8485, 29692), (11420, 22061), (14846, 16970)]