81413500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{3323}}^1$

素因数の和:3356

約数の個数: 72

約数和(自身を含む): 206899056

約数和(自身を除く): 125485556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 700, 875, 980, 1225, 1750, 2450, 3323, 3500, 4900, 6125, 6646, 12250, 13292, 16615, 23261, 24500, 33230, 46522, 66460, 83075, 93044, 116305, 162827, 166150, 232610, 325654, 332300, 415375, 465220, 581525, 651308, 814135, 830750, 1163050, 1628270, 1661500, 2326100, 2907625, 3256540, 4070675, 5815250, 8141350, 11630500, 16282700, 20353375, 40706750, 81413500]

約数ペア:

[(1, 81413500), (2, 40706750), (4, 20353375), (5, 16282700), (7, 11630500), (10, 8141350), (14, 5815250), (20, 4070675), (25, 3256540), (28, 2907625), (35, 2326100), (49, 1661500), (50, 1628270), (70, 1163050), (98, 830750), (100, 814135), (125, 651308), (140, 581525), (175, 465220), (196, 415375), (245, 332300), (250, 325654), (350, 232610), (490, 166150), (500, 162827), (700, 116305), (875, 93044), (980, 83075), (1225, 66460), (1750, 46522), (2450, 33230), (3323, 24500), (3500, 23261), (4900, 16615), (6125, 13292), (6646, 12250)]