77980540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2791}}^1$

素因数の和:2938

約数の個数: 48

約数和(自身を含む): 180117504

約数和(自身を除く): 102136964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 1270, 1397, 2540, 2791, 2794, 5582, 5588, 6985, 11164, 13955, 13970, 27910, 27940, 30701, 55820, 61402, 122804, 153505, 307010, 354457, 614020, 708914, 1417828, 1772285, 3544570, 3899027, 7089140, 7798054, 15596108, 19495135, 38990270, 77980540]

約数ペア:

[(1, 77980540), (2, 38990270), (4, 19495135), (5, 15596108), (10, 7798054), (11, 7089140), (20, 3899027), (22, 3544570), (44, 1772285), (55, 1417828), (110, 708914), (127, 614020), (220, 354457), (254, 307010), (508, 153505), (635, 122804), (1270, 61402), (1397, 55820), (2540, 30701), (2791, 27940), (2794, 27910), (5582, 13970), (5588, 13955), (6985, 11164)]