217719250

素因数分解:

$2^1\times 5^3\times 7^3\times {\mathrm{2539}}^1$

素因数の和:2577

約数の個数: 64

約数和(自身を含む): 475488000

約数和(自身を除く): 257768750

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 343, 350, 490, 686, 875, 1225, 1715, 1750, 2450, 2539, 3430, 5078, 6125, 8575, 12250, 12695, 17150, 17773, 25390, 35546, 42875, 63475, 85750, 88865, 124411, 126950, 177730, 248822, 317375, 444325, 622055, 634750, 870877, 888650, 1244110, 1741754, 2221625, 3110275, 4354385, 4443250, 6220550, 8708770, 15551375, 21771925, 31102750, 43543850, 108859625, 217719250]

約数ペア:

[(1, 217719250), (2, 108859625), (5, 43543850), (7, 31102750), (10, 21771925), (14, 15551375), (25, 8708770), (35, 6220550), (49, 4443250), (50, 4354385), (70, 3110275), (98, 2221625), (125, 1741754), (175, 1244110), (245, 888650), (250, 870877), (343, 634750), (350, 622055), (490, 444325), (686, 317375), (875, 248822), (1225, 177730), (1715, 126950), (1750, 124411), (2450, 88865), (2539, 85750), (3430, 63475), (5078, 42875), (6125, 35546), (8575, 25390), (12250, 17773), (12695, 17150)]