87326920

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2203}}^1$

素因数の和:3205

約数の個数: 32

約数和(自身を含む): 196773120

約数和(自身を除く): 109446200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 2203, 3964, 4406, 4955, 7928, 8812, 9910, 11015, 17624, 19820, 22030, 39640, 44060, 88120, 2183173, 4366346, 8732692, 10915865, 17465384, 21831730, 43663460, 87326920]

約数ペア:

[(1, 87326920), (2, 43663460), (4, 21831730), (5, 17465384), (8, 10915865), (10, 8732692), (20, 4366346), (40, 2183173), (991, 88120), (1982, 44060), (2203, 39640), (3964, 22030), (4406, 19820), (4955, 17624), (7928, 11015), (8812, 9910)]