919964240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{911}}^1\times {\mathrm{971}}^1$

素因数の和:1908

約数の個数: 80

約数和(自身を含む): 2308352256

約数和(自身を除く): 1388388016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 911, 971, 1040, 1822, 1942, 3644, 3884, 4555, 4855, 7288, 7768, 9110, 9710, 11843, 12623, 14576, 15536, 18220, 19420, 23686, 25246, 36440, 38840, 47372, 50492, 59215, 63115, 72880, 77680, 94744, 100984, 118430, 126230, 189488, 201968, 236860, 252460, 473720, 504920, 884581, 947440, 1009840, 1769162, 3538324, 4422905, 7076648, 8845810, 11499553, 14153296, 17691620, 22999106, 35383240, 45998212, 57497765, 70766480, 91996424, 114995530, 183992848, 229991060, 459982120, 919964240]

約数ペア:

[(1, 919964240), (2, 459982120), (4, 229991060), (5, 183992848), (8, 114995530), (10, 91996424), (13, 70766480), (16, 57497765), (20, 45998212), (26, 35383240), (40, 22999106), (52, 17691620), (65, 14153296), (80, 11499553), (104, 8845810), (130, 7076648), (208, 4422905), (260, 3538324), (520, 1769162), (911, 1009840), (971, 947440), (1040, 884581), (1822, 504920), (1942, 473720), (3644, 252460), (3884, 236860), (4555, 201968), (4855, 189488), (7288, 126230), (7768, 118430), (9110, 100984), (9710, 94744), (11843, 77680), (12623, 72880), (14576, 63115), (15536, 59215), (18220, 50492), (19420, 47372), (23686, 38840), (25246, 36440)]