28480240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 71557920

約数和(自身を除く): 43077680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 457, 656, 760, 779, 820, 914, 1520, 1558, 1640, 1828, 2285, 3116, 3280, 3656, 3895, 4570, 6232, 7312, 7790, 8683, 9140, 12464, 15580, 17366, 18280, 18737, 31160, 34732, 36560, 37474, 43415, 62320, 69464, 74948, 86830, 93685, 138928, 149896, 173660, 187370, 299792, 347320, 356003, 374740, 694640, 712006, 749480, 1424012, 1498960, 1780015, 2848024, 3560030, 5696048, 7120060, 14240120, 28480240]

約数ペア:

[(1, 28480240), (2, 14240120), (4, 7120060), (5, 5696048), (8, 3560030), (10, 2848024), (16, 1780015), (19, 1498960), (20, 1424012), (38, 749480), (40, 712006), (41, 694640), (76, 374740), (80, 356003), (82, 347320), (95, 299792), (152, 187370), (164, 173660), (190, 149896), (205, 138928), (304, 93685), (328, 86830), (380, 74948), (410, 69464), (457, 62320), (656, 43415), (760, 37474), (779, 36560), (820, 34732), (914, 31160), (1520, 18737), (1558, 18280), (1640, 17366), (1828, 15580), (2285, 12464), (3116, 9140), (3280, 8683), (3656, 7790), (3895, 7312), (4570, 6232)]