18130420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 48496896

約数和(自身を除く): 30366476

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 61, 70, 77, 110, 122, 140, 154, 193, 220, 244, 305, 308, 385, 386, 427, 610, 671, 770, 772, 854, 965, 1220, 1342, 1351, 1540, 1708, 1930, 2123, 2135, 2684, 2702, 3355, 3860, 4246, 4270, 4697, 5404, 6710, 6755, 8492, 8540, 9394, 10615, 11773, 13420, 13510, 14861, 18788, 21230, 23485, 23546, 27020, 29722, 42460, 46970, 47092, 58865, 59444, 74305, 82411, 93940, 117730, 129503, 148610, 164822, 235460, 259006, 297220, 329644, 412055, 518012, 647515, 824110, 906521, 1295030, 1648220, 1813042, 2590060, 3626084, 4532605, 9065210, 18130420]

約数ペア:

[(1, 18130420), (2, 9065210), (4, 4532605), (5, 3626084), (7, 2590060), (10, 1813042), (11, 1648220), (14, 1295030), (20, 906521), (22, 824110), (28, 647515), (35, 518012), (44, 412055), (55, 329644), (61, 297220), (70, 259006), (77, 235460), (110, 164822), (122, 148610), (140, 129503), (154, 117730), (193, 93940), (220, 82411), (244, 74305), (305, 59444), (308, 58865), (385, 47092), (386, 46970), (427, 42460), (610, 29722), (671, 27020), (770, 23546), (772, 23485), (854, 21230), (965, 18788), (1220, 14861), (1342, 13510), (1351, 13420), (1540, 11773), (1708, 10615), (1930, 9394), (2123, 8540), (2135, 8492), (2684, 6755), (2702, 6710), (3355, 5404), (3860, 4697), (4246, 4270)]