208402020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7103}}^1$

素因数の和:7281

約数の個数: 72

約数和(自身を含む): 636120576

約数和(自身を除く): 427718556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 815, 978, 1467, 1630, 1956, 2445, 2934, 3260, 4890, 5868, 7103, 7335, 9780, 14206, 14670, 21309, 28412, 29340, 35515, 42618, 63927, 71030, 85236, 106545, 127854, 142060, 213090, 255708, 319635, 426180, 639270, 1157789, 1278540, 2315578, 3473367, 4631156, 5788945, 6946734, 10420101, 11577890, 13893468, 17366835, 20840202, 23155780, 34733670, 41680404, 52100505, 69467340, 104201010, 208402020]

約数ペア:

[(1, 208402020), (2, 104201010), (3, 69467340), (4, 52100505), (5, 41680404), (6, 34733670), (9, 23155780), (10, 20840202), (12, 17366835), (15, 13893468), (18, 11577890), (20, 10420101), (30, 6946734), (36, 5788945), (45, 4631156), (60, 3473367), (90, 2315578), (163, 1278540), (180, 1157789), (326, 639270), (489, 426180), (652, 319635), (815, 255708), (978, 213090), (1467, 142060), (1630, 127854), (1956, 106545), (2445, 85236), (2934, 71030), (3260, 63927), (4890, 42618), (5868, 35515), (7103, 29340), (7335, 28412), (9780, 21309), (14206, 14670)]