28451925

素因数分解:

$3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 53200960

約数和(自身を除く): 24749035

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 135, 183, 225, 305, 549, 675, 691, 915, 1525, 1647, 2073, 2745, 3455, 4575, 6219, 8235, 10365, 13725, 17275, 18657, 31095, 41175, 42151, 51825, 93285, 126453, 155475, 210755, 379359, 466425, 632265, 1053775, 1138077, 1896795, 3161325, 5690385, 9483975, 28451925]

約数ペア:

[(1, 28451925), (3, 9483975), (5, 5690385), (9, 3161325), (15, 1896795), (25, 1138077), (27, 1053775), (45, 632265), (61, 466425), (75, 379359), (135, 210755), (183, 155475), (225, 126453), (305, 93285), (549, 51825), (675, 42151), (691, 41175), (915, 31095), (1525, 18657), (1647, 17275), (2073, 13725), (2745, 10365), (3455, 8235), (4575, 6219)]