87737680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64513}}^1$

素因数の和:64543

約数の個数: 40

約数和(自身を含む): 215992872

約数和(自身を除く): 128255192

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 64513, 129026, 258052, 322565, 516104, 645130, 1032208, 1096721, 1290260, 2193442, 2580520, 4386884, 5161040, 5483605, 8773768, 10967210, 17547536, 21934420, 43868840, 87737680]

約数ペア:

[(1, 87737680), (2, 43868840), (4, 21934420), (5, 17547536), (8, 10967210), (10, 8773768), (16, 5483605), (17, 5161040), (20, 4386884), (34, 2580520), (40, 2193442), (68, 1290260), (80, 1096721), (85, 1032208), (136, 645130), (170, 516104), (272, 322565), (340, 258052), (680, 129026), (1360, 64513)]