19006875

素因数分解:

$3^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:166

約数の個数: 60

約数和(自身を含む): 35738560

約数和(自身を除く): 16731685

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 109, 125, 155, 225, 279, 327, 375, 465, 545, 625, 775, 981, 1125, 1395, 1635, 1875, 2325, 2725, 3379, 3875, 4905, 5625, 6975, 8175, 10137, 11625, 13625, 16895, 19375, 24525, 30411, 34875, 40875, 50685, 58125, 68125, 84475, 122625, 152055, 174375, 204375, 253425, 422375, 613125, 760275, 1267125, 2111875, 3801375, 6335625, 19006875]

約数ペア:

[(1, 19006875), (3, 6335625), (5, 3801375), (9, 2111875), (15, 1267125), (25, 760275), (31, 613125), (45, 422375), (75, 253425), (93, 204375), (109, 174375), (125, 152055), (155, 122625), (225, 84475), (279, 68125), (327, 58125), (375, 50685), (465, 40875), (545, 34875), (625, 30411), (775, 24525), (981, 19375), (1125, 16895), (1395, 13625), (1635, 11625), (1875, 10137), (2325, 8175), (2725, 6975), (3379, 5625), (3875, 4905)]