10420000

素因数分解:

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

素因数の和:551

約数の個数: 60

約数和(自身を含む): 25683966

約数和(自身を除く): 15263966

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 521, 625, 800, 1000, 1042, 1250, 2000, 2084, 2500, 2605, 4000, 4168, 5000, 5210, 8336, 10000, 10420, 13025, 16672, 20000, 20840, 26050, 41680, 52100, 65125, 83360, 104200, 130250, 208400, 260500, 325625, 416800, 521000, 651250, 1042000, 1302500, 2084000, 2605000, 5210000, 10420000]

約数ペア:

[(1, 10420000), (2, 5210000), (4, 2605000), (5, 2084000), (8, 1302500), (10, 1042000), (16, 651250), (20, 521000), (25, 416800), (32, 325625), (40, 260500), (50, 208400), (80, 130250), (100, 104200), (125, 83360), (160, 65125), (200, 52100), (250, 41680), (400, 26050), (500, 20840), (521, 20000), (625, 16672), (800, 13025), (1000, 10420), (1042, 10000), (1250, 8336), (2000, 5210), (2084, 5000), (2500, 4168), (2605, 4000)]