1368509780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{15991}}^1$

素因数の和:16400

約数の個数: 48

約数和(自身を含む): 3143387520

約数和(自身を除く): 1774877740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 389, 778, 1556, 1945, 3890, 4279, 7780, 8558, 15991, 17116, 21395, 31982, 42790, 63964, 79955, 85580, 159910, 175901, 319820, 351802, 703604, 879505, 1759010, 3518020, 6220499, 12440998, 24881996, 31102495, 62204990, 68425489, 124409980, 136850978, 273701956, 342127445, 684254890, 1368509780]

約数ペア:

[(1, 1368509780), (2, 684254890), (4, 342127445), (5, 273701956), (10, 136850978), (11, 124409980), (20, 68425489), (22, 62204990), (44, 31102495), (55, 24881996), (110, 12440998), (220, 6220499), (389, 3518020), (778, 1759010), (1556, 879505), (1945, 703604), (3890, 351802), (4279, 319820), (7780, 175901), (8558, 159910), (15991, 85580), (17116, 79955), (21395, 63964), (31982, 42790)]