79987880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{463}}^1\times {\mathrm{617}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 206461440

約数和(自身を除く): 126473560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 463, 617, 926, 1234, 1852, 2315, 2468, 3085, 3241, 3704, 4319, 4630, 4936, 6170, 6482, 8638, 9260, 12340, 12964, 16205, 17276, 18520, 21595, 24680, 25928, 32410, 34552, 43190, 64820, 86380, 129640, 172760, 285671, 571342, 1142684, 1428355, 1999697, 2285368, 2856710, 3999394, 5713420, 7998788, 9998485, 11426840, 15997576, 19996970, 39993940, 79987880]

約数ペア:

[(1, 79987880), (2, 39993940), (4, 19996970), (5, 15997576), (7, 11426840), (8, 9998485), (10, 7998788), (14, 5713420), (20, 3999394), (28, 2856710), (35, 2285368), (40, 1999697), (56, 1428355), (70, 1142684), (140, 571342), (280, 285671), (463, 172760), (617, 129640), (926, 86380), (1234, 64820), (1852, 43190), (2315, 34552), (2468, 32410), (3085, 25928), (3241, 24680), (3704, 21595), (4319, 18520), (4630, 17276), (4936, 16205), (6170, 12964), (6482, 12340), (8638, 9260)]