18928208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:192

約数の個数: 80

約数和(自身を含む): 43028496

約数和(自身を除く): 24100288

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 53, 68, 101, 104, 106, 136, 202, 208, 212, 221, 272, 404, 424, 442, 689, 808, 848, 884, 901, 1313, 1378, 1616, 1717, 1768, 1802, 2626, 2756, 3434, 3536, 3604, 5252, 5353, 5512, 6868, 7208, 10504, 10706, 11024, 11713, 13736, 14416, 21008, 21412, 22321, 23426, 27472, 42824, 44642, 46852, 69589, 85648, 89284, 91001, 93704, 139178, 178568, 182002, 187408, 278356, 357136, 364004, 556712, 728008, 1113424, 1183013, 1456016, 2366026, 4732052, 9464104, 18928208]

約数ペア:

[(1, 18928208), (2, 9464104), (4, 4732052), (8, 2366026), (13, 1456016), (16, 1183013), (17, 1113424), (26, 728008), (34, 556712), (52, 364004), (53, 357136), (68, 278356), (101, 187408), (104, 182002), (106, 178568), (136, 139178), (202, 93704), (208, 91001), (212, 89284), (221, 85648), (272, 69589), (404, 46852), (424, 44642), (442, 42824), (689, 27472), (808, 23426), (848, 22321), (884, 21412), (901, 21008), (1313, 14416), (1378, 13736), (1616, 11713), (1717, 11024), (1768, 10706), (1802, 10504), (2626, 7208), (2756, 6868), (3434, 5512), (3536, 5353), (3604, 5252)]