18700890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47951}}^1$

素因数の和:47974

約数の個数: 32

約数和(自身を含む): 48335616

約数和(自身を除く): 29634726

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 47951, 95902, 143853, 239755, 287706, 479510, 623363, 719265, 1246726, 1438530, 1870089, 3116815, 3740178, 6233630, 9350445, 18700890]

約数ペア:

[(1, 18700890), (2, 9350445), (3, 6233630), (5, 3740178), (6, 3116815), (10, 1870089), (13, 1438530), (15, 1246726), (26, 719265), (30, 623363), (39, 479510), (65, 287706), (78, 239755), (130, 143853), (195, 95902), (390, 47951)]