20476740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 60318720

約数和(自身を除く): 39841980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 101, 109, 124, 155, 186, 202, 218, 303, 310, 327, 372, 404, 436, 465, 505, 545, 606, 620, 654, 930, 1010, 1090, 1212, 1308, 1515, 1635, 1860, 2020, 2180, 3030, 3131, 3270, 3379, 6060, 6262, 6540, 6758, 9393, 10137, 11009, 12524, 13516, 15655, 16895, 18786, 20274, 22018, 31310, 33027, 33790, 37572, 40548, 44036, 46965, 50685, 55045, 62620, 66054, 67580, 93930, 101370, 110090, 132108, 165135, 187860, 202740, 220180, 330270, 341279, 660540, 682558, 1023837, 1365116, 1706395, 2047674, 3412790, 4095348, 5119185, 6825580, 10238370, 20476740]

約数ペア:

[(1, 20476740), (2, 10238370), (3, 6825580), (4, 5119185), (5, 4095348), (6, 3412790), (10, 2047674), (12, 1706395), (15, 1365116), (20, 1023837), (30, 682558), (31, 660540), (60, 341279), (62, 330270), (93, 220180), (101, 202740), (109, 187860), (124, 165135), (155, 132108), (186, 110090), (202, 101370), (218, 93930), (303, 67580), (310, 66054), (327, 62620), (372, 55045), (404, 50685), (436, 46965), (465, 44036), (505, 40548), (545, 37572), (606, 33790), (620, 33027), (654, 31310), (930, 22018), (1010, 20274), (1090, 18786), (1212, 16895), (1308, 15655), (1515, 13516), (1635, 12524), (1860, 11009), (2020, 10137), (2180, 9393), (3030, 6758), (3131, 6540), (3270, 6262), (3379, 6060)]