639716620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{9643}}^1$

素因数の和:9790

約数の個数: 48

約数和(自身を含む): 1399845888

約数和(自身を除く): 760129268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 107, 124, 155, 214, 310, 428, 535, 620, 1070, 2140, 3317, 6634, 9643, 13268, 16585, 19286, 33170, 38572, 48215, 66340, 96430, 192860, 298933, 597866, 1031801, 1195732, 1494665, 2063602, 2989330, 4127204, 5159005, 5978660, 10318010, 20636020, 31985831, 63971662, 127943324, 159929155, 319858310, 639716620]

約数ペア:

[(1, 639716620), (2, 319858310), (4, 159929155), (5, 127943324), (10, 63971662), (20, 31985831), (31, 20636020), (62, 10318010), (107, 5978660), (124, 5159005), (155, 4127204), (214, 2989330), (310, 2063602), (428, 1494665), (535, 1195732), (620, 1031801), (1070, 597866), (2140, 298933), (3317, 192860), (6634, 96430), (9643, 66340), (13268, 48215), (16585, 38572), (19286, 33170)]