20899125

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1429}}^1$

素因数の和:1463

約数の個数: 48

約数和(自身を含む): 40600560

約数和(自身を除く): 19701435

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 325, 375, 585, 975, 1125, 1429, 1625, 2925, 4287, 4875, 7145, 12861, 14625, 18577, 21435, 35725, 55731, 64305, 92885, 107175, 167193, 178625, 278655, 321525, 464425, 535875, 835965, 1393275, 1607625, 2322125, 4179825, 6966375, 20899125]

約数ペア:

[(1, 20899125), (3, 6966375), (5, 4179825), (9, 2322125), (13, 1607625), (15, 1393275), (25, 835965), (39, 535875), (45, 464425), (65, 321525), (75, 278655), (117, 178625), (125, 167193), (195, 107175), (225, 92885), (325, 64305), (375, 55731), (585, 35725), (975, 21435), (1125, 18577), (1429, 14625), (1625, 12861), (2925, 7145), (4287, 4875)]