208099720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{306029}}^1$

素因数の和:306057

約数の個数: 32

約数和(自身を含む): 495768600

約数和(自身を除く): 287668880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 306029, 612058, 1224116, 1530145, 2448232, 3060290, 5202493, 6120580, 10404986, 12241160, 20809972, 26012465, 41619944, 52024930, 104049860, 208099720]

約数ペア:

[(1, 208099720), (2, 104049860), (4, 52024930), (5, 41619944), (8, 26012465), (10, 20809972), (17, 12241160), (20, 10404986), (34, 6120580), (40, 5202493), (68, 3060290), (85, 2448232), (136, 1530145), (170, 1224116), (340, 612058), (680, 306029)]