421255.0000000

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{947}}^1$

素因数の和:978

約数の個数: 36

約数和(自身を含む): 3702888

約数和(自身を除く): 2092988

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 947, 1700, 1894, 3788, 4735, 9470, 16099, 18940, 23675, 32198, 47350, 64396, 80495, 94700, 160990, 321980, 402475, 804950, 1609900]

約数ペア:

[(1, 1609900), (2, 804950), (4, 402475), (5, 321980), (10, 160990), (17, 94700), (20, 80495), (25, 64396), (34, 47350), (50, 32198), (68, 23675), (85, 18940), (100, 16099), (170, 9470), (340, 4735), (425, 3788), (850, 1894), (947, 1700)]