87158820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{207521}}^1$

素因数の和:207540

約数の個数: 48

約数和(自身を含む): 278909568

約数和(自身を除く): 191750748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 207521, 415042, 622563, 830084, 1037605, 1245126, 1452647, 2075210, 2490252, 2905294, 3112815, 4150420, 4357941, 5810588, 6225630, 7263235, 8715882, 12451260, 14526470, 17431764, 21789705, 29052940, 43579410, 87158820]

約数ペア:

[(1, 87158820), (2, 43579410), (3, 29052940), (4, 21789705), (5, 17431764), (6, 14526470), (7, 12451260), (10, 8715882), (12, 7263235), (14, 6225630), (15, 5810588), (20, 4357941), (21, 4150420), (28, 3112815), (30, 2905294), (35, 2490252), (42, 2075210), (60, 1452647), (70, 1245126), (84, 1037605), (105, 830084), (140, 622563), (210, 415042), (420, 207521)]