4321000

素因数分解:

$2^3\times 5^3\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 10530000

約数和(自身を除く): 6209000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 125, 145, 149, 200, 232, 250, 290, 298, 500, 580, 596, 725, 745, 1000, 1160, 1192, 1450, 1490, 2900, 2980, 3625, 3725, 4321, 5800, 5960, 7250, 7450, 8642, 14500, 14900, 17284, 18625, 21605, 29000, 29800, 34568, 37250, 43210, 74500, 86420, 108025, 149000, 172840, 216050, 432100, 540125, 864200, 1080250, 2160500, 4321000]

約数ペア:

[(1, 4321000), (2, 2160500), (4, 1080250), (5, 864200), (8, 540125), (10, 432100), (20, 216050), (25, 172840), (29, 149000), (40, 108025), (50, 86420), (58, 74500), (100, 43210), (116, 37250), (125, 34568), (145, 29800), (149, 29000), (200, 21605), (232, 18625), (250, 17284), (290, 14900), (298, 14500), (500, 8642), (580, 7450), (596, 7250), (725, 5960), (745, 5800), (1000, 4321), (1160, 3725), (1192, 3625), (1450, 2980), (1490, 2900)]