87272440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70381}}^1$

素因数の和:70423

約数の個数: 32

約数和(自身を含む): 202700160

約数和(自身を除く): 115427720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 70381, 140762, 281524, 351905, 563048, 703810, 1407620, 2181811, 2815240, 4363622, 8727244, 10909055, 17454488, 21818110, 43636220, 87272440]

約数ペア:

[(1, 87272440), (2, 43636220), (4, 21818110), (5, 17454488), (8, 10909055), (10, 8727244), (20, 4363622), (31, 2815240), (40, 2181811), (62, 1407620), (124, 703810), (155, 563048), (248, 351905), (310, 281524), (620, 140762), (1240, 70381)]