20392750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 44808192

約数和(自身を除く): 24415442

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 50, 70, 86, 125, 175, 215, 250, 271, 301, 350, 430, 542, 602, 875, 1075, 1355, 1505, 1750, 1897, 2150, 2710, 3010, 3794, 5375, 6775, 7525, 9485, 10750, 11653, 13550, 15050, 18970, 23306, 33875, 37625, 47425, 58265, 67750, 75250, 81571, 94850, 116530, 163142, 237125, 291325, 407855, 474250, 582650, 815710, 1456625, 2039275, 2913250, 4078550, 10196375, 20392750]

約数ペア:

[(1, 20392750), (2, 10196375), (5, 4078550), (7, 2913250), (10, 2039275), (14, 1456625), (25, 815710), (35, 582650), (43, 474250), (50, 407855), (70, 291325), (86, 237125), (125, 163142), (175, 116530), (215, 94850), (250, 81571), (271, 75250), (301, 67750), (350, 58265), (430, 47425), (542, 37625), (602, 33875), (875, 23306), (1075, 18970), (1355, 15050), (1505, 13550), (1750, 11653), (1897, 10750), (2150, 9485), (2710, 7525), (3010, 6775), (3794, 5375)]