81191864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2417}}^1$

素因数の和:2472

約数の個数: 64

約数和(自身を含む): 182800800

約数和(自身を除く): 101608936

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 221, 247, 323, 442, 494, 646, 884, 988, 1292, 1768, 1976, 2417, 2584, 4199, 4834, 8398, 9668, 16796, 19336, 31421, 33592, 41089, 45923, 62842, 82178, 91846, 125684, 164356, 183692, 251368, 328712, 367384, 534157, 596999, 780691, 1068314, 1193998, 1561382, 2136628, 2387996, 3122764, 4273256, 4775992, 6245528, 10148983, 20297966, 40595932, 81191864]

約数ペア:

[(1, 81191864), (2, 40595932), (4, 20297966), (8, 10148983), (13, 6245528), (17, 4775992), (19, 4273256), (26, 3122764), (34, 2387996), (38, 2136628), (52, 1561382), (68, 1193998), (76, 1068314), (104, 780691), (136, 596999), (152, 534157), (221, 367384), (247, 328712), (323, 251368), (442, 183692), (494, 164356), (646, 125684), (884, 91846), (988, 82178), (1292, 62842), (1768, 45923), (1976, 41089), (2417, 33592), (2584, 31421), (4199, 19336), (4834, 16796), (8398, 9668)]