20928240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9689}}^1$

素因数の和:9711

約数の個数: 80

約数和(自身を含む): 72093600

約数和(自身を除く): 51165360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9689, 19378, 29067, 38756, 48445, 58134, 77512, 87201, 96890, 116268, 145335, 155024, 174402, 193780, 232536, 261603, 290670, 348804, 387560, 436005, 465072, 523206, 581340, 697608, 775120, 872010, 1046412, 1162680, 1308015, 1395216, 1744020, 2092824, 2325360, 2616030, 3488040, 4185648, 5232060, 6976080, 10464120, 20928240]

約数ペア:

[(1, 20928240), (2, 10464120), (3, 6976080), (4, 5232060), (5, 4185648), (6, 3488040), (8, 2616030), (9, 2325360), (10, 2092824), (12, 1744020), (15, 1395216), (16, 1308015), (18, 1162680), (20, 1046412), (24, 872010), (27, 775120), (30, 697608), (36, 581340), (40, 523206), (45, 465072), (48, 436005), (54, 387560), (60, 348804), (72, 290670), (80, 261603), (90, 232536), (108, 193780), (120, 174402), (135, 155024), (144, 145335), (180, 116268), (216, 96890), (240, 87201), (270, 77512), (360, 58134), (432, 48445), (540, 38756), (720, 29067), (1080, 19378), (2160, 9689)]