19914897392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{9109}}^1$

素因数の和:9610

約数の個数: 80

約数和(自身を含む): 43459510080

約数和(自身を除く): 23544612688

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 457, 598, 914, 1196, 1828, 2392, 3656, 4784, 5941, 7312, 9109, 10511, 11882, 18218, 21022, 23764, 36436, 42044, 47528, 72872, 84088, 95056, 118417, 136643, 145744, 168176, 209507, 236834, 273286, 419014, 473668, 546572, 838028, 947336, 1093144, 1676056, 1894672, 2186288, 2723591, 3352112, 4162813, 5447182, 8325626, 10894364, 16651252, 21788728, 33302504, 43577456, 54116569, 66605008, 95744699, 108233138, 191489398, 216466276, 382978796, 432932552, 765957592, 865865104, 1244681087, 1531915184, 2489362174, 4978724348, 9957448696, 19914897392]

約数ペア:

[(1, 19914897392), (2, 9957448696), (4, 4978724348), (8, 2489362174), (13, 1531915184), (16, 1244681087), (23, 865865104), (26, 765957592), (46, 432932552), (52, 382978796), (92, 216466276), (104, 191489398), (184, 108233138), (208, 95744699), (299, 66605008), (368, 54116569), (457, 43577456), (598, 33302504), (914, 21788728), (1196, 16651252), (1828, 10894364), (2392, 8325626), (3656, 5447182), (4784, 4162813), (5941, 3352112), (7312, 2723591), (9109, 2186288), (10511, 1894672), (11882, 1676056), (18218, 1093144), (21022, 947336), (23764, 838028), (36436, 546572), (42044, 473668), (47528, 419014), (72872, 273286), (84088, 236834), (95056, 209507), (118417, 168176), (136643, 145744)]