18341840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1097}}^1$

素因数の和:1140

約数の個数: 80

約数和(自身を含む): 49014720

約数和(自身を除く): 30672880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1097, 1520, 1672, 2090, 2194, 3344, 4180, 4388, 5485, 8360, 8776, 10970, 12067, 16720, 17552, 20843, 21940, 24134, 41686, 43880, 48268, 60335, 83372, 87760, 96536, 104215, 120670, 166744, 193072, 208430, 229273, 241340, 333488, 416860, 458546, 482680, 833720, 917092, 965360, 1146365, 1667440, 1834184, 2292730, 3668368, 4585460, 9170920, 18341840]

約数ペア:

[(1, 18341840), (2, 9170920), (4, 4585460), (5, 3668368), (8, 2292730), (10, 1834184), (11, 1667440), (16, 1146365), (19, 965360), (20, 917092), (22, 833720), (38, 482680), (40, 458546), (44, 416860), (55, 333488), (76, 241340), (80, 229273), (88, 208430), (95, 193072), (110, 166744), (152, 120670), (176, 104215), (190, 96536), (209, 87760), (220, 83372), (304, 60335), (380, 48268), (418, 43880), (440, 41686), (760, 24134), (836, 21940), (880, 20843), (1045, 17552), (1097, 16720), (1520, 12067), (1672, 10970), (2090, 8776), (2194, 8360), (3344, 5485), (4180, 4388)]