667085480

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1\times {\mathrm{557}}^1$

素因数の和:1026

約数の個数: 64

約数和(自身を含む): 1526688000

約数和(自身を除く): 859602520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 379, 395, 557, 632, 758, 790, 1114, 1516, 1580, 1895, 2228, 2785, 3032, 3160, 3790, 4456, 5570, 7580, 11140, 15160, 22280, 29941, 44003, 59882, 88006, 119764, 149705, 176012, 211103, 220015, 239528, 299410, 352024, 422206, 440030, 598820, 844412, 880060, 1055515, 1197640, 1688824, 1760120, 2111030, 4222060, 8444120, 16677137, 33354274, 66708548, 83385685, 133417096, 166771370, 333542740, 667085480]

約数ペア:

[(1, 667085480), (2, 333542740), (4, 166771370), (5, 133417096), (8, 83385685), (10, 66708548), (20, 33354274), (40, 16677137), (79, 8444120), (158, 4222060), (316, 2111030), (379, 1760120), (395, 1688824), (557, 1197640), (632, 1055515), (758, 880060), (790, 844412), (1114, 598820), (1516, 440030), (1580, 422206), (1895, 352024), (2228, 299410), (2785, 239528), (3032, 220015), (3160, 211103), (3790, 176012), (4456, 149705), (5570, 119764), (7580, 88006), (11140, 59882), (15160, 44003), (22280, 29941)]