20523180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{853}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 57675744

約数和(自身を除く): 37152564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 401, 802, 853, 1203, 1604, 1706, 2005, 2406, 2559, 3412, 4010, 4265, 4812, 5118, 6015, 8020, 8530, 10236, 12030, 12795, 17060, 24060, 25590, 51180, 342053, 684106, 1026159, 1368212, 1710265, 2052318, 3420530, 4104636, 5130795, 6841060, 10261590, 20523180]

約数ペア:

[(1, 20523180), (2, 10261590), (3, 6841060), (4, 5130795), (5, 4104636), (6, 3420530), (10, 2052318), (12, 1710265), (15, 1368212), (20, 1026159), (30, 684106), (60, 342053), (401, 51180), (802, 25590), (853, 24060), (1203, 17060), (1604, 12795), (1706, 12030), (2005, 10236), (2406, 8530), (2559, 8020), (3412, 6015), (4010, 5118), (4265, 4812)]