31696880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12781}}^1$

素因数の和:12825

約数の個数: 40

約数和(自身を含む): 76078464

約数和(自身を除く): 44381584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12781, 25562, 51124, 63905, 102248, 127810, 204496, 255620, 396211, 511240, 792422, 1022480, 1584844, 1981055, 3169688, 3962110, 6339376, 7924220, 15848440, 31696880]

約数ペア:

[(1, 31696880), (2, 15848440), (4, 7924220), (5, 6339376), (8, 3962110), (10, 3169688), (16, 1981055), (20, 1584844), (31, 1022480), (40, 792422), (62, 511240), (80, 396211), (124, 255620), (155, 204496), (248, 127810), (310, 102248), (496, 63905), (620, 51124), (1240, 25562), (2480, 12781)]