397883408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1213}}^1$

素因数の和:1336

約数の個数: 80

約数和(自身を含む): 885151680

約数和(自身を除く): 487268272

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 83, 104, 152, 166, 208, 247, 304, 332, 494, 664, 988, 1079, 1213, 1328, 1577, 1976, 2158, 2426, 3154, 3952, 4316, 4852, 6308, 8632, 9704, 12616, 15769, 17264, 19408, 20501, 23047, 25232, 31538, 41002, 46094, 63076, 82004, 92188, 100679, 126152, 164008, 184376, 201358, 252304, 299611, 328016, 368752, 402716, 599222, 805432, 1198444, 1308827, 1610864, 1912901, 2396888, 2617654, 3825802, 4793776, 5235308, 7651604, 10470616, 15303208, 20941232, 24867713, 30606416, 49735426, 99470852, 198941704, 397883408]

約数ペア:

[(1, 397883408), (2, 198941704), (4, 99470852), (8, 49735426), (13, 30606416), (16, 24867713), (19, 20941232), (26, 15303208), (38, 10470616), (52, 7651604), (76, 5235308), (83, 4793776), (104, 3825802), (152, 2617654), (166, 2396888), (208, 1912901), (247, 1610864), (304, 1308827), (332, 1198444), (494, 805432), (664, 599222), (988, 402716), (1079, 368752), (1213, 328016), (1328, 299611), (1577, 252304), (1976, 201358), (2158, 184376), (2426, 164008), (3154, 126152), (3952, 100679), (4316, 92188), (4852, 82004), (6308, 63076), (8632, 46094), (9704, 41002), (12616, 31538), (15769, 25232), (17264, 23047), (19408, 20501)]