71812240

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 173560320

約数和(自身を除く): 101748080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 71, 80, 94, 142, 188, 235, 269, 284, 355, 376, 470, 538, 568, 710, 752, 940, 1076, 1136, 1345, 1420, 1880, 2152, 2690, 2840, 3337, 3760, 4304, 5380, 5680, 6674, 10760, 12643, 13348, 16685, 19099, 21520, 25286, 26696, 33370, 38198, 50572, 53392, 63215, 66740, 76396, 95495, 101144, 126430, 133480, 152792, 190990, 202288, 252860, 266960, 305584, 381980, 505720, 763960, 897653, 1011440, 1527920, 1795306, 3590612, 4488265, 7181224, 8976530, 14362448, 17953060, 35906120, 71812240]

約数ペア:

[(1, 71812240), (2, 35906120), (4, 17953060), (5, 14362448), (8, 8976530), (10, 7181224), (16, 4488265), (20, 3590612), (40, 1795306), (47, 1527920), (71, 1011440), (80, 897653), (94, 763960), (142, 505720), (188, 381980), (235, 305584), (269, 266960), (284, 252860), (355, 202288), (376, 190990), (470, 152792), (538, 133480), (568, 126430), (710, 101144), (752, 95495), (940, 76396), (1076, 66740), (1136, 63215), (1345, 53392), (1420, 50572), (1880, 38198), (2152, 33370), (2690, 26696), (2840, 25286), (3337, 21520), (3760, 19099), (4304, 16685), (5380, 13348), (5680, 12643), (6674, 10760)]