171938920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{26371}}^1$

素因数の和:26545

約数の個数: 32

約数和(自身を含む): 389250720

約数和(自身を除く): 217311800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 26371, 52742, 105484, 131855, 210968, 263710, 527420, 1054840, 4298473, 8596946, 17193892, 21492365, 34387784, 42984730, 85969460, 171938920]

約数ペア:

[(1, 171938920), (2, 85969460), (4, 42984730), (5, 34387784), (8, 21492365), (10, 17193892), (20, 8596946), (40, 4298473), (163, 1054840), (326, 527420), (652, 263710), (815, 210968), (1304, 131855), (1630, 105484), (3260, 52742), (6520, 26371)]