28680240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1637}}^1$

素因数の和:1726

約数の個数: 80

約数和(自身を含む): 90181728

約数和(自身を除く): 61501488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 73, 80, 120, 146, 219, 240, 292, 365, 438, 584, 730, 876, 1095, 1168, 1460, 1637, 1752, 2190, 2920, 3274, 3504, 4380, 4911, 5840, 6548, 8185, 8760, 9822, 13096, 16370, 17520, 19644, 24555, 26192, 32740, 39288, 49110, 65480, 78576, 98220, 119501, 130960, 196440, 239002, 358503, 392880, 478004, 597505, 717006, 956008, 1195010, 1434012, 1792515, 1912016, 2390020, 2868024, 3585030, 4780040, 5736048, 7170060, 9560080, 14340120, 28680240]

約数ペア:

[(1, 28680240), (2, 14340120), (3, 9560080), (4, 7170060), (5, 5736048), (6, 4780040), (8, 3585030), (10, 2868024), (12, 2390020), (15, 1912016), (16, 1792515), (20, 1434012), (24, 1195010), (30, 956008), (40, 717006), (48, 597505), (60, 478004), (73, 392880), (80, 358503), (120, 239002), (146, 196440), (219, 130960), (240, 119501), (292, 98220), (365, 78576), (438, 65480), (584, 49110), (730, 39288), (876, 32740), (1095, 26192), (1168, 24555), (1460, 19644), (1637, 17520), (1752, 16370), (2190, 13096), (2920, 9822), (3274, 8760), (3504, 8185), (4380, 6548), (4911, 5840)]