20810720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1093}}^1$

素因数の和:1132

約数の個数: 96

約数和(自身を含む): 59548608

約数和(自身を除く): 38737888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 340, 476, 544, 560, 595, 680, 952, 1093, 1120, 1190, 1360, 1904, 2186, 2380, 2720, 3808, 4372, 4760, 5465, 7651, 8744, 9520, 10930, 15302, 17488, 18581, 19040, 21860, 30604, 34976, 37162, 38255, 43720, 61208, 74324, 76510, 87440, 92905, 122416, 130067, 148648, 153020, 174880, 185810, 244832, 260134, 297296, 306040, 371620, 520268, 594592, 612080, 650335, 743240, 1040536, 1224160, 1300670, 1486480, 2081072, 2601340, 2972960, 4162144, 5202680, 10405360, 20810720]

約数ペア:

[(1, 20810720), (2, 10405360), (4, 5202680), (5, 4162144), (7, 2972960), (8, 2601340), (10, 2081072), (14, 1486480), (16, 1300670), (17, 1224160), (20, 1040536), (28, 743240), (32, 650335), (34, 612080), (35, 594592), (40, 520268), (56, 371620), (68, 306040), (70, 297296), (80, 260134), (85, 244832), (112, 185810), (119, 174880), (136, 153020), (140, 148648), (160, 130067), (170, 122416), (224, 92905), (238, 87440), (272, 76510), (280, 74324), (340, 61208), (476, 43720), (544, 38255), (560, 37162), (595, 34976), (680, 30604), (952, 21860), (1093, 19040), (1120, 18581), (1190, 17488), (1360, 15302), (1904, 10930), (2186, 9520), (2380, 8744), (2720, 7651), (3808, 5465), (4372, 4760)]