86920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 32

約数和(自身を含む): 204120

約数和(自身を除く): 117200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 164, 205, 212, 265, 328, 410, 424, 530, 820, 1060, 1640, 2120, 2173, 4346, 8692, 10865, 17384, 21730, 43460, 86920]

約数ペア:

[(1, 86920), (2, 43460), (4, 21730), (5, 17384), (8, 10865), (10, 8692), (20, 4346), (40, 2173), (41, 2120), (53, 1640), (82, 1060), (106, 820), (164, 530), (205, 424), (212, 410), (265, 328)]