647513425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{719}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 922440960

約数和(自身を除く): 274927535

約数列:

[1, 5, 13, 17, 25, 65, 85, 163, 221, 325, 425, 719, 815, 1105, 2119, 2771, 3595, 4075, 5525, 9347, 10595, 12223, 13855, 17975, 36023, 46735, 52975, 61115, 69275, 117197, 158899, 180115, 233675, 305575, 585985, 794495, 900575, 1523561, 1992349, 2929925, 3972475, 7617805, 9961745, 25900537, 38089025, 49808725, 129502685, 647513425]

約数ペア:

[(1, 647513425), (5, 129502685), (13, 49808725), (17, 38089025), (25, 25900537), (65, 9961745), (85, 7617805), (163, 3972475), (221, 2929925), (325, 1992349), (425, 1523561), (719, 900575), (815, 794495), (1105, 585985), (2119, 305575), (2771, 233675), (3595, 180115), (4075, 158899), (5525, 117197), (9347, 69275), (10595, 61115), (12223, 52975), (13855, 46735), (17975, 36023)]