16997680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:386

約数の個数: 80

約数和(自身を含む): 45711360

約数和(自身を除く): 28713680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 239, 254, 280, 478, 508, 560, 635, 889, 956, 1016, 1195, 1270, 1673, 1778, 1912, 2032, 2390, 2540, 3346, 3556, 3824, 4445, 4780, 5080, 6692, 7112, 8365, 8890, 9560, 10160, 13384, 14224, 16730, 17780, 19120, 26768, 30353, 33460, 35560, 60706, 66920, 71120, 121412, 133840, 151765, 212471, 242824, 303530, 424942, 485648, 607060, 849884, 1062355, 1214120, 1699768, 2124710, 2428240, 3399536, 4249420, 8498840, 16997680]

約数ペア:

[(1, 16997680), (2, 8498840), (4, 4249420), (5, 3399536), (7, 2428240), (8, 2124710), (10, 1699768), (14, 1214120), (16, 1062355), (20, 849884), (28, 607060), (35, 485648), (40, 424942), (56, 303530), (70, 242824), (80, 212471), (112, 151765), (127, 133840), (140, 121412), (239, 71120), (254, 66920), (280, 60706), (478, 35560), (508, 33460), (560, 30353), (635, 26768), (889, 19120), (956, 17780), (1016, 16730), (1195, 14224), (1270, 13384), (1673, 10160), (1778, 9560), (1912, 8890), (2032, 8365), (2390, 7112), (2540, 6692), (3346, 5080), (3556, 4780), (3824, 4445)]