20412540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{367}}^1$

素因数の和:488

約数の個数: 96

約数和(自身を含む): 64296960

約数和(自身を除く): 43884420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 103, 108, 135, 180, 206, 270, 309, 367, 412, 515, 540, 618, 734, 927, 1030, 1101, 1236, 1468, 1545, 1835, 1854, 2060, 2202, 2781, 3090, 3303, 3670, 3708, 4404, 4635, 5505, 5562, 6180, 6606, 7340, 9270, 9909, 11010, 11124, 13212, 13905, 16515, 18540, 19818, 22020, 27810, 33030, 37801, 39636, 49545, 55620, 66060, 75602, 99090, 113403, 151204, 189005, 198180, 226806, 340209, 378010, 453612, 567015, 680418, 756020, 1020627, 1134030, 1360836, 1701045, 2041254, 2268060, 3402090, 4082508, 5103135, 6804180, 10206270, 20412540]

約数ペア:

[(1, 20412540), (2, 10206270), (3, 6804180), (4, 5103135), (5, 4082508), (6, 3402090), (9, 2268060), (10, 2041254), (12, 1701045), (15, 1360836), (18, 1134030), (20, 1020627), (27, 756020), (30, 680418), (36, 567015), (45, 453612), (54, 378010), (60, 340209), (90, 226806), (103, 198180), (108, 189005), (135, 151204), (180, 113403), (206, 99090), (270, 75602), (309, 66060), (367, 55620), (412, 49545), (515, 39636), (540, 37801), (618, 33030), (734, 27810), (927, 22020), (1030, 19818), (1101, 18540), (1236, 16515), (1468, 13905), (1545, 13212), (1835, 11124), (1854, 11010), (2060, 9909), (2202, 9270), (2781, 7340), (3090, 6606), (3303, 6180), (3670, 5562), (3708, 5505), (4404, 4635)]