81684720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2909}}^1$

素因数の和:2944

約数の個数: 160

約数和(自身を含む): 303105600

約数和(自身を除く): 221420880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 780, 936, 1040, 1080, 1170, 1404, 1560, 1755, 1872, 2160, 2340, 2808, 2909, 3120, 3510, 4680, 5616, 5818, 7020, 8727, 9360, 11636, 14040, 14545, 17454, 23272, 26181, 28080, 29090, 34908, 37817, 43635, 46544, 52362, 58180, 69816, 75634, 78543, 87270, 104724, 113451, 116360, 130905, 139632, 151268, 157086, 174540, 189085, 209448, 226902, 232720, 261810, 302536, 314172, 340353, 349080, 378170, 392715, 418896, 453804, 523620, 567255, 605072, 628344, 680706, 698160, 756340, 785430, 907608, 1021059, 1047240, 1134510, 1256688, 1361412, 1512680, 1570860, 1701765, 1815216, 2042118, 2094480, 2269020, 2722824, 3025360, 3141720, 3403530, 4084236, 4538040, 5105295, 5445648, 6283440, 6807060, 8168472, 9076080, 10210590, 13614120, 16336944, 20421180, 27228240, 40842360, 81684720]

約数ペア:

[(1, 81684720), (2, 40842360), (3, 27228240), (4, 20421180), (5, 16336944), (6, 13614120), (8, 10210590), (9, 9076080), (10, 8168472), (12, 6807060), (13, 6283440), (15, 5445648), (16, 5105295), (18, 4538040), (20, 4084236), (24, 3403530), (26, 3141720), (27, 3025360), (30, 2722824), (36, 2269020), (39, 2094480), (40, 2042118), (45, 1815216), (48, 1701765), (52, 1570860), (54, 1512680), (60, 1361412), (65, 1256688), (72, 1134510), (78, 1047240), (80, 1021059), (90, 907608), (104, 785430), (108, 756340), (117, 698160), (120, 680706), (130, 628344), (135, 605072), (144, 567255), (156, 523620), (180, 453804), (195, 418896), (208, 392715), (216, 378170), (234, 349080), (240, 340353), (260, 314172), (270, 302536), (312, 261810), (351, 232720), (360, 226902), (390, 209448), (432, 189085), (468, 174540), (520, 157086), (540, 151268), (585, 139632), (624, 130905), (702, 116360), (720, 113451), (780, 104724), (936, 87270), (1040, 78543), (1080, 75634), (1170, 69816), (1404, 58180), (1560, 52362), (1755, 46544), (1872, 43635), (2160, 37817), (2340, 34908), (2808, 29090), (2909, 28080), (3120, 26181), (3510, 23272), (4680, 17454), (5616, 14545), (5818, 14040), (7020, 11636), (8727, 9360)]