80915300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1151}}^1$

素因数の和:1221

約数の個数: 72

約数和(自身を含む): 189987840

約数和(自身を除く): 109072540

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 37, 38, 50, 74, 76, 95, 100, 148, 185, 190, 370, 380, 475, 703, 740, 925, 950, 1151, 1406, 1850, 1900, 2302, 2812, 3515, 3700, 4604, 5755, 7030, 11510, 14060, 17575, 21869, 23020, 28775, 35150, 42587, 43738, 57550, 70300, 85174, 87476, 109345, 115100, 170348, 212935, 218690, 425870, 437380, 546725, 809153, 851740, 1064675, 1093450, 1618306, 2129350, 2186900, 3236612, 4045765, 4258700, 8091530, 16183060, 20228825, 40457650, 80915300]

約数ペア:

[(1, 80915300), (2, 40457650), (4, 20228825), (5, 16183060), (10, 8091530), (19, 4258700), (20, 4045765), (25, 3236612), (37, 2186900), (38, 2129350), (50, 1618306), (74, 1093450), (76, 1064675), (95, 851740), (100, 809153), (148, 546725), (185, 437380), (190, 425870), (370, 218690), (380, 212935), (475, 170348), (703, 115100), (740, 109345), (925, 87476), (950, 85174), (1151, 70300), (1406, 57550), (1850, 43738), (1900, 42587), (2302, 35150), (2812, 28775), (3515, 23020), (3700, 21869), (4604, 17575), (5755, 14060), (7030, 11510)]