155404240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{281}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 375975936

約数和(自身を除く): 220571696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 223, 248, 281, 310, 446, 496, 562, 620, 892, 1115, 1124, 1240, 1405, 1784, 2230, 2248, 2480, 2810, 3568, 4460, 4496, 5620, 6913, 8711, 8920, 11240, 13826, 17422, 17840, 22480, 27652, 34565, 34844, 43555, 55304, 62663, 69130, 69688, 87110, 110608, 125326, 138260, 139376, 174220, 250652, 276520, 313315, 348440, 501304, 553040, 626630, 696880, 1002608, 1253260, 1942553, 2506520, 3885106, 5013040, 7770212, 9712765, 15540424, 19425530, 31080848, 38851060, 77702120, 155404240]

約数ペア:

[(1, 155404240), (2, 77702120), (4, 38851060), (5, 31080848), (8, 19425530), (10, 15540424), (16, 9712765), (20, 7770212), (31, 5013040), (40, 3885106), (62, 2506520), (80, 1942553), (124, 1253260), (155, 1002608), (223, 696880), (248, 626630), (281, 553040), (310, 501304), (446, 348440), (496, 313315), (562, 276520), (620, 250652), (892, 174220), (1115, 139376), (1124, 138260), (1240, 125326), (1405, 110608), (1784, 87110), (2230, 69688), (2248, 69130), (2480, 62663), (2810, 55304), (3568, 43555), (4460, 34844), (4496, 34565), (5620, 27652), (6913, 22480), (8711, 17840), (8920, 17422), (11240, 13826)]