18818240

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:326

約数の個数: 112

約数和(自身を含む): 53059584

約数和(自身を除く): 34241344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 271, 280, 310, 320, 434, 448, 496, 542, 560, 620, 868, 992, 1084, 1085, 1120, 1240, 1355, 1736, 1897, 1984, 2168, 2170, 2240, 2480, 2710, 3472, 3794, 4336, 4340, 4960, 5420, 6944, 7588, 8401, 8672, 8680, 9485, 9920, 10840, 13888, 15176, 16802, 17344, 17360, 18970, 21680, 30352, 33604, 34720, 37940, 42005, 43360, 58807, 60704, 67208, 69440, 75880, 84010, 86720, 117614, 121408, 134416, 151760, 168020, 235228, 268832, 294035, 303520, 336040, 470456, 537664, 588070, 607040, 672080, 940912, 1176140, 1344160, 1881824, 2352280, 2688320, 3763648, 4704560, 9409120, 18818240]

約数ペア:

[(1, 18818240), (2, 9409120), (4, 4704560), (5, 3763648), (7, 2688320), (8, 2352280), (10, 1881824), (14, 1344160), (16, 1176140), (20, 940912), (28, 672080), (31, 607040), (32, 588070), (35, 537664), (40, 470456), (56, 336040), (62, 303520), (64, 294035), (70, 268832), (80, 235228), (112, 168020), (124, 151760), (140, 134416), (155, 121408), (160, 117614), (217, 86720), (224, 84010), (248, 75880), (271, 69440), (280, 67208), (310, 60704), (320, 58807), (434, 43360), (448, 42005), (496, 37940), (542, 34720), (560, 33604), (620, 30352), (868, 21680), (992, 18970), (1084, 17360), (1085, 17344), (1120, 16802), (1240, 15176), (1355, 13888), (1736, 10840), (1897, 9920), (1984, 9485), (2168, 8680), (2170, 8672), (2240, 8401), (2480, 7588), (2710, 6944), (3472, 5420), (3794, 4960), (4336, 4340)]