28363660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{59}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 66785040

約数和(自身を除く): 38421380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 59, 65, 86, 118, 130, 172, 215, 236, 260, 295, 430, 559, 590, 767, 860, 1118, 1180, 1534, 1849, 2236, 2537, 2795, 3068, 3698, 3835, 5074, 5590, 7396, 7670, 9245, 10148, 11180, 12685, 15340, 18490, 24037, 25370, 32981, 36980, 48074, 50740, 65962, 96148, 109091, 120185, 131924, 164905, 218182, 240370, 329810, 436364, 480740, 545455, 659620, 1090910, 1418183, 2181820, 2836366, 5672732, 7090915, 14181830, 28363660]

約数ペア:

[(1, 28363660), (2, 14181830), (4, 7090915), (5, 5672732), (10, 2836366), (13, 2181820), (20, 1418183), (26, 1090910), (43, 659620), (52, 545455), (59, 480740), (65, 436364), (86, 329810), (118, 240370), (130, 218182), (172, 164905), (215, 131924), (236, 120185), (260, 109091), (295, 96148), (430, 65962), (559, 50740), (590, 48074), (767, 36980), (860, 32981), (1118, 25370), (1180, 24037), (1534, 18490), (1849, 15340), (2236, 12685), (2537, 11180), (2795, 10148), (3068, 9245), (3698, 7670), (3835, 7396), (5074, 5590)]