5210000

素因数分解:

$2^4\times 5^4\times {\mathrm{521}}^1$

素因数の和:549

約数の個数: 50

約数和(自身を含む): 12638142

約数和(自身を除く): 7428142

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 521, 625, 1000, 1042, 1250, 2000, 2084, 2500, 2605, 4168, 5000, 5210, 8336, 10000, 10420, 13025, 20840, 26050, 41680, 52100, 65125, 104200, 130250, 208400, 260500, 325625, 521000, 651250, 1042000, 1302500, 2605000, 5210000]

約数ペア:

[(1, 5210000), (2, 2605000), (4, 1302500), (5, 1042000), (8, 651250), (10, 521000), (16, 325625), (20, 260500), (25, 208400), (40, 130250), (50, 104200), (80, 65125), (100, 52100), (125, 41680), (200, 26050), (250, 20840), (400, 13025), (500, 10420), (521, 10000), (625, 8336), (1000, 5210), (1042, 5000), (1250, 4168), (2000, 2605), (2084, 2500)]