20308625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 7996015

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 323, 425, 475, 503, 1615, 2125, 2375, 2515, 8075, 8551, 9557, 12575, 40375, 42755, 47785, 62875, 162469, 213775, 238925, 812345, 1068875, 1194625, 4061725, 20308625]

約数ペア:

[(1, 20308625), (5, 4061725), (17, 1194625), (19, 1068875), (25, 812345), (85, 238925), (95, 213775), (125, 162469), (323, 62875), (425, 47785), (475, 42755), (503, 40375), (1615, 12575), (2125, 9557), (2375, 8551), (2515, 8075)]