64186640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1879}}^1$

素因数の和:1960

約数の個数: 80

約数和(自身を含む): 173441280

約数和(自身を除く): 109254640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 1879, 2135, 2440, 3416, 3758, 4270, 4880, 6832, 7516, 8540, 9395, 13153, 15032, 17080, 18790, 26306, 30064, 34160, 37580, 52612, 65765, 75160, 105224, 114619, 131530, 150320, 210448, 229238, 263060, 458476, 526120, 573095, 802333, 916952, 1052240, 1146190, 1604666, 1833904, 2292380, 3209332, 4011665, 4584760, 6418664, 8023330, 9169520, 12837328, 16046660, 32093320, 64186640]

約数ペア:

[(1, 64186640), (2, 32093320), (4, 16046660), (5, 12837328), (7, 9169520), (8, 8023330), (10, 6418664), (14, 4584760), (16, 4011665), (20, 3209332), (28, 2292380), (35, 1833904), (40, 1604666), (56, 1146190), (61, 1052240), (70, 916952), (80, 802333), (112, 573095), (122, 526120), (140, 458476), (244, 263060), (280, 229238), (305, 210448), (427, 150320), (488, 131530), (560, 114619), (610, 105224), (854, 75160), (976, 65765), (1220, 52612), (1708, 37580), (1879, 34160), (2135, 30064), (2440, 26306), (3416, 18790), (3758, 17080), (4270, 15032), (4880, 13153), (6832, 9395), (7516, 8540)]