388821875

素因数分解:

$5^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 555151968

約数和(自身を除く): 166330093

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 325, 425, 563, 625, 1105, 1625, 2125, 2815, 3125, 5525, 7319, 8125, 9571, 10625, 14075, 27625, 36595, 40625, 47855, 53125, 70375, 124423, 138125, 182975, 239275, 351875, 622115, 690625, 914875, 1196375, 1759375, 3110575, 4574375, 5981875, 15552875, 22871875, 29909375, 77764375, 388821875]

約数ペア:

[(1, 388821875), (5, 77764375), (13, 29909375), (17, 22871875), (25, 15552875), (65, 5981875), (85, 4574375), (125, 3110575), (221, 1759375), (325, 1196375), (425, 914875), (563, 690625), (625, 622115), (1105, 351875), (1625, 239275), (2125, 182975), (2815, 138125), (3125, 124423), (5525, 70375), (7319, 53125), (8125, 47855), (9571, 40625), (10625, 36595), (14075, 27625)]