80742520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{118739}}^1$

素因数の和:118767

約数の個数: 32

約数和(自身を含む): 192358800

約数和(自身を除く): 111616280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 118739, 237478, 474956, 593695, 949912, 1187390, 2018563, 2374780, 4037126, 4749560, 8074252, 10092815, 16148504, 20185630, 40371260, 80742520]

約数ペア:

[(1, 80742520), (2, 40371260), (4, 20185630), (5, 16148504), (8, 10092815), (10, 8074252), (17, 4749560), (20, 4037126), (34, 2374780), (40, 2018563), (68, 1187390), (85, 949912), (136, 593695), (170, 474956), (340, 237478), (680, 118739)]