18367984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:158

約数の個数: 80

約数和(自身を含む): 40711680

約数和(自身を除く): 22343696

約数列:

[1, 2, 4, 8, 16, 19, 23, 37, 38, 46, 71, 74, 76, 92, 142, 148, 152, 184, 284, 296, 304, 368, 437, 568, 592, 703, 851, 874, 1136, 1349, 1406, 1633, 1702, 1748, 2627, 2698, 2812, 3266, 3404, 3496, 5254, 5396, 5624, 6532, 6808, 6992, 10508, 10792, 11248, 13064, 13616, 16169, 21016, 21584, 26128, 31027, 32338, 42032, 49913, 60421, 62054, 64676, 99826, 120842, 124108, 129352, 199652, 241684, 248216, 258704, 399304, 483368, 496432, 798608, 966736, 1147999, 2295998, 4591996, 9183992, 18367984]

約数ペア:

[(1, 18367984), (2, 9183992), (4, 4591996), (8, 2295998), (16, 1147999), (19, 966736), (23, 798608), (37, 496432), (38, 483368), (46, 399304), (71, 258704), (74, 248216), (76, 241684), (92, 199652), (142, 129352), (148, 124108), (152, 120842), (184, 99826), (284, 64676), (296, 62054), (304, 60421), (368, 49913), (437, 42032), (568, 32338), (592, 31027), (703, 26128), (851, 21584), (874, 21016), (1136, 16169), (1349, 13616), (1406, 13064), (1633, 11248), (1702, 10792), (1748, 10508), (2627, 6992), (2698, 6808), (2812, 6532), (3266, 5624), (3404, 5396), (3496, 5254)]