87721456

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{281}}^1$

素因数の和:577

約数の個数: 40

約数和(自身を含む): 173091600

約数和(自身を除く): 85370144

約数列:

[1, 2, 4, 8, 16, 109, 179, 218, 281, 358, 436, 562, 716, 872, 1124, 1432, 1744, 2248, 2864, 4496, 19511, 30629, 39022, 50299, 61258, 78044, 100598, 122516, 156088, 201196, 245032, 312176, 402392, 490064, 804784, 5482591, 10965182, 21930364, 43860728, 87721456]

約数ペア:

[(1, 87721456), (2, 43860728), (4, 21930364), (8, 10965182), (16, 5482591), (109, 804784), (179, 490064), (218, 402392), (281, 312176), (358, 245032), (436, 201196), (562, 156088), (716, 122516), (872, 100598), (1124, 78044), (1432, 61258), (1744, 50299), (2248, 39022), (2864, 30629), (4496, 19511)]