315980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:114

約数の個数: 48

約数和(自身を含む): 791616

約数和(自身を除く): 475636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 61, 70, 74, 122, 140, 148, 185, 244, 259, 305, 370, 427, 518, 610, 740, 854, 1036, 1220, 1295, 1708, 2135, 2257, 2590, 4270, 4514, 5180, 8540, 9028, 11285, 15799, 22570, 31598, 45140, 63196, 78995, 157990, 315980]

約数ペア:

[(1, 315980), (2, 157990), (4, 78995), (5, 63196), (7, 45140), (10, 31598), (14, 22570), (20, 15799), (28, 11285), (35, 9028), (37, 8540), (61, 5180), (70, 4514), (74, 4270), (122, 2590), (140, 2257), (148, 2135), (185, 1708), (244, 1295), (259, 1220), (305, 1036), (370, 854), (427, 740), (518, 610)]