81580320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{313}}^1$

素因数の和:515

約数の個数: 144

約数和(自身を含む): 280825272

約数和(自身を除く): 199244952

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 181, 240, 288, 313, 360, 362, 480, 543, 626, 720, 724, 905, 939, 1086, 1252, 1440, 1448, 1565, 1629, 1810, 1878, 2172, 2504, 2715, 2817, 2896, 3130, 3258, 3620, 3756, 4344, 4695, 5008, 5430, 5634, 5792, 6260, 6516, 7240, 7512, 8145, 8688, 9390, 10016, 10860, 11268, 12520, 13032, 14085, 14480, 15024, 16290, 17376, 18780, 21720, 22536, 25040, 26064, 28170, 28960, 30048, 32580, 37560, 43440, 45072, 50080, 52128, 56340, 56653, 65160, 75120, 86880, 90144, 112680, 113306, 130320, 150240, 169959, 225360, 226612, 260640, 283265, 339918, 450720, 453224, 509877, 566530, 679836, 849795, 906448, 1019754, 1133060, 1359672, 1699590, 1812896, 2039508, 2266120, 2549385, 2719344, 3399180, 4079016, 4532240, 5098770, 5438688, 6798360, 8158032, 9064480, 10197540, 13596720, 16316064, 20395080, 27193440, 40790160, 81580320]

約数ペア:

[(1, 81580320), (2, 40790160), (3, 27193440), (4, 20395080), (5, 16316064), (6, 13596720), (8, 10197540), (9, 9064480), (10, 8158032), (12, 6798360), (15, 5438688), (16, 5098770), (18, 4532240), (20, 4079016), (24, 3399180), (30, 2719344), (32, 2549385), (36, 2266120), (40, 2039508), (45, 1812896), (48, 1699590), (60, 1359672), (72, 1133060), (80, 1019754), (90, 906448), (96, 849795), (120, 679836), (144, 566530), (160, 509877), (180, 453224), (181, 450720), (240, 339918), (288, 283265), (313, 260640), (360, 226612), (362, 225360), (480, 169959), (543, 150240), (626, 130320), (720, 113306), (724, 112680), (905, 90144), (939, 86880), (1086, 75120), (1252, 65160), (1440, 56653), (1448, 56340), (1565, 52128), (1629, 50080), (1810, 45072), (1878, 43440), (2172, 37560), (2504, 32580), (2715, 30048), (2817, 28960), (2896, 28170), (3130, 26064), (3258, 25040), (3620, 22536), (3756, 21720), (4344, 18780), (4695, 17376), (5008, 16290), (5430, 15024), (5634, 14480), (5792, 14085), (6260, 13032), (6516, 12520), (7240, 11268), (7512, 10860), (8145, 10016), (8688, 9390)]