13124920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 31026240

約数和(自身を除く): 17901320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 151, 164, 205, 212, 265, 302, 328, 410, 424, 530, 604, 755, 820, 1060, 1208, 1510, 1640, 2120, 2173, 3020, 4346, 6040, 6191, 8003, 8692, 10865, 12382, 16006, 17384, 21730, 24764, 30955, 32012, 40015, 43460, 49528, 61910, 64024, 80030, 86920, 123820, 160060, 247640, 320120, 328123, 656246, 1312492, 1640615, 2624984, 3281230, 6562460, 13124920]

約数ペア:

[(1, 13124920), (2, 6562460), (4, 3281230), (5, 2624984), (8, 1640615), (10, 1312492), (20, 656246), (40, 328123), (41, 320120), (53, 247640), (82, 160060), (106, 123820), (151, 86920), (164, 80030), (205, 64024), (212, 61910), (265, 49528), (302, 43460), (328, 40015), (410, 32012), (424, 30955), (530, 24764), (604, 21730), (755, 17384), (820, 16006), (1060, 12382), (1208, 10865), (1510, 8692), (1640, 8003), (2120, 6191), (2173, 6040), (3020, 4346)]