72780680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 193544640

約数和(自身を除く): 120763960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 71, 98, 140, 142, 196, 245, 280, 284, 355, 392, 490, 497, 523, 568, 710, 980, 994, 1046, 1420, 1960, 1988, 2092, 2485, 2615, 2840, 3479, 3661, 3976, 4184, 4970, 5230, 6958, 7322, 9940, 10460, 13916, 14644, 17395, 18305, 19880, 20920, 25627, 27832, 29288, 34790, 36610, 37133, 51254, 69580, 73220, 74266, 102508, 128135, 139160, 146440, 148532, 185665, 205016, 256270, 259931, 297064, 371330, 512540, 519862, 742660, 1025080, 1039724, 1299655, 1485320, 1819517, 2079448, 2599310, 3639034, 5198620, 7278068, 9097585, 10397240, 14556136, 18195170, 36390340, 72780680]

約数ペア:

[(1, 72780680), (2, 36390340), (4, 18195170), (5, 14556136), (7, 10397240), (8, 9097585), (10, 7278068), (14, 5198620), (20, 3639034), (28, 2599310), (35, 2079448), (40, 1819517), (49, 1485320), (56, 1299655), (70, 1039724), (71, 1025080), (98, 742660), (140, 519862), (142, 512540), (196, 371330), (245, 297064), (280, 259931), (284, 256270), (355, 205016), (392, 185665), (490, 148532), (497, 146440), (523, 139160), (568, 128135), (710, 102508), (980, 74266), (994, 73220), (1046, 69580), (1420, 51254), (1960, 37133), (1988, 36610), (2092, 34790), (2485, 29288), (2615, 27832), (2840, 25627), (3479, 20920), (3661, 19880), (3976, 18305), (4184, 17395), (4970, 14644), (5230, 13916), (6958, 10460), (7322, 9940)]