620641996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{1621}}^1$

素因数の和:1874

約数の個数: 48

約数和(自身を含む): 1208065600

約数和(自身を除く): 587423604

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 199, 398, 481, 796, 962, 1621, 1924, 2587, 3242, 5174, 6484, 7363, 10348, 14726, 21073, 29452, 42146, 59977, 84292, 95719, 119954, 191438, 239908, 322579, 382876, 645158, 779701, 1290316, 1559402, 3118804, 4193527, 8387054, 11935423, 16774108, 23870846, 47741692, 155160499, 310320998, 620641996]

約数ペア:

[(1, 620641996), (2, 310320998), (4, 155160499), (13, 47741692), (26, 23870846), (37, 16774108), (52, 11935423), (74, 8387054), (148, 4193527), (199, 3118804), (398, 1559402), (481, 1290316), (796, 779701), (962, 645158), (1621, 382876), (1924, 322579), (2587, 239908), (3242, 191438), (5174, 119954), (6484, 95719), (7363, 84292), (10348, 59977), (14726, 42146), (21073, 29452)]