45455000

素因数分解:

$2^3\times 5^4\times {\mathrm{9091}}^1$

素因数の和:9117

約数の個数: 40

約数和(自身を含む): 106512780

約数和(自身を除く): 61057780

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 9091, 18182, 36364, 45455, 72728, 90910, 181820, 227275, 363640, 454550, 909100, 1136375, 1818200, 2272750, 4545500, 5681875, 9091000, 11363750, 22727500, 45455000]

約数ペア:

[(1, 45455000), (2, 22727500), (4, 11363750), (5, 9091000), (8, 5681875), (10, 4545500), (20, 2272750), (25, 1818200), (40, 1136375), (50, 909100), (100, 454550), (125, 363640), (200, 227275), (250, 181820), (500, 90910), (625, 72728), (1000, 45455), (1250, 36364), (2500, 18182), (5000, 9091)]