87931960

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{12281}}^1$

素因数の和:12471

約数の個数: 32

約数和(自身を含む): 198968400

約数和(自身を除く): 111036440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 7160, 12281, 24562, 49124, 61405, 98248, 122810, 245620, 491240, 2198299, 4396598, 8793196, 10991495, 17586392, 21982990, 43965980, 87931960]

約数ペア:

[(1, 87931960), (2, 43965980), (4, 21982990), (5, 17586392), (8, 10991495), (10, 8793196), (20, 4396598), (40, 2198299), (179, 491240), (358, 245620), (716, 122810), (895, 98248), (1432, 61405), (1790, 49124), (3580, 24562), (7160, 12281)]