87990975

素因数分解:

$3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2137}}^1$

素因数の和:2217

約数の個数: 48

約数和(自身を含む): 164369440

約数和(自身を除く): 76378465

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 135, 183, 225, 305, 549, 675, 915, 1525, 1647, 2137, 2745, 4575, 6411, 8235, 10685, 13725, 19233, 32055, 41175, 53425, 57699, 96165, 130357, 160275, 288495, 391071, 480825, 651785, 1173213, 1442475, 1955355, 3258925, 3519639, 5866065, 9776775, 17598195, 29330325, 87990975]

約数ペア:

[(1, 87990975), (3, 29330325), (5, 17598195), (9, 9776775), (15, 5866065), (25, 3519639), (27, 3258925), (45, 1955355), (61, 1442475), (75, 1173213), (135, 651785), (183, 480825), (225, 391071), (305, 288495), (549, 160275), (675, 130357), (915, 96165), (1525, 57699), (1647, 53425), (2137, 41175), (2745, 32055), (4575, 19233), (6411, 13725), (8235, 10685)]