28335420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17491}}^1$

素因数の和:17512

約数の個数: 60

約数和(自身を含む): 88894344

約数和(自身を除く): 60558924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 17491, 34982, 52473, 69964, 87455, 104946, 157419, 174910, 209892, 262365, 314838, 349820, 472257, 524730, 629676, 787095, 944514, 1049460, 1416771, 1574190, 1889028, 2361285, 2833542, 3148380, 4722570, 5667084, 7083855, 9445140, 14167710, 28335420]

約数ペア:

[(1, 28335420), (2, 14167710), (3, 9445140), (4, 7083855), (5, 5667084), (6, 4722570), (9, 3148380), (10, 2833542), (12, 2361285), (15, 1889028), (18, 1574190), (20, 1416771), (27, 1049460), (30, 944514), (36, 787095), (45, 629676), (54, 524730), (60, 472257), (81, 349820), (90, 314838), (108, 262365), (135, 209892), (162, 174910), (180, 157419), (270, 104946), (324, 87455), (405, 69964), (540, 52473), (810, 34982), (1620, 17491)]