128974625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{571}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 174894720

約数和(自身を除く): 45920095

約数列:

[1, 5, 13, 25, 65, 125, 139, 325, 571, 695, 1625, 1807, 2855, 3475, 7423, 9035, 14275, 17375, 37115, 45175, 71375, 79369, 185575, 225875, 396845, 927875, 1031797, 1984225, 5158985, 9921125, 25794925, 128974625]

約数ペア:

[(1, 128974625), (5, 25794925), (13, 9921125), (25, 5158985), (65, 1984225), (125, 1031797), (139, 927875), (325, 396845), (571, 225875), (695, 185575), (1625, 79369), (1807, 71375), (2855, 45175), (3475, 37115), (7423, 17375), (9035, 14275)]