85987900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 195300000

約数和(自身を除く): 109312100

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 149, 199, 290, 298, 398, 580, 596, 725, 745, 796, 995, 1450, 1490, 1990, 2900, 2980, 3725, 3980, 4321, 4975, 5771, 7450, 8642, 9950, 11542, 14900, 17284, 19900, 21605, 23084, 28855, 29651, 43210, 57710, 59302, 86420, 108025, 115420, 118604, 144275, 148255, 216050, 288550, 296510, 432100, 577100, 593020, 741275, 859879, 1482550, 1719758, 2965100, 3439516, 4299395, 8598790, 17197580, 21496975, 42993950, 85987900]

約数ペア:

[(1, 85987900), (2, 42993950), (4, 21496975), (5, 17197580), (10, 8598790), (20, 4299395), (25, 3439516), (29, 2965100), (50, 1719758), (58, 1482550), (100, 859879), (116, 741275), (145, 593020), (149, 577100), (199, 432100), (290, 296510), (298, 288550), (398, 216050), (580, 148255), (596, 144275), (725, 118604), (745, 115420), (796, 108025), (995, 86420), (1450, 59302), (1490, 57710), (1990, 43210), (2900, 29651), (2980, 28855), (3725, 23084), (3980, 21605), (4321, 19900), (4975, 17284), (5771, 14900), (7450, 11542), (8642, 9950)]