81820320

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:343

約数の個数: 192

約数和(自身を含む): 281304576

約数和(自身を除く): 199484256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 37, 40, 48, 51, 60, 68, 74, 80, 85, 96, 102, 111, 120, 136, 148, 160, 170, 185, 204, 222, 240, 255, 271, 272, 296, 340, 370, 408, 444, 480, 510, 542, 544, 555, 592, 629, 680, 740, 813, 816, 888, 1020, 1084, 1110, 1184, 1258, 1355, 1360, 1480, 1626, 1632, 1776, 1887, 2040, 2168, 2220, 2516, 2710, 2720, 2960, 3145, 3252, 3552, 3774, 4065, 4080, 4336, 4440, 4607, 5032, 5420, 5920, 6290, 6504, 7548, 8130, 8160, 8672, 8880, 9214, 9435, 10027, 10064, 10840, 12580, 13008, 13821, 15096, 16260, 17760, 18428, 18870, 20054, 20128, 21680, 23035, 25160, 26016, 27642, 30081, 30192, 32520, 36856, 37740, 40108, 43360, 46070, 50135, 50320, 55284, 60162, 60384, 65040, 69105, 73712, 75480, 80216, 92140, 100270, 100640, 110568, 120324, 130080, 138210, 147424, 150405, 150960, 160432, 170459, 184280, 200540, 221136, 240648, 276420, 300810, 301920, 320864, 340918, 368560, 401080, 442272, 481296, 511377, 552840, 601620, 681836, 737120, 802160, 852295, 962592, 1022754, 1105680, 1203240, 1363672, 1604320, 1704590, 2045508, 2211360, 2406480, 2556885, 2727344, 3409180, 4091016, 4812960, 5113770, 5454688, 6818360, 8182032, 10227540, 13636720, 16364064, 20455080, 27273440, 40910160, 81820320]

約数ペア:

[(1, 81820320), (2, 40910160), (3, 27273440), (4, 20455080), (5, 16364064), (6, 13636720), (8, 10227540), (10, 8182032), (12, 6818360), (15, 5454688), (16, 5113770), (17, 4812960), (20, 4091016), (24, 3409180), (30, 2727344), (32, 2556885), (34, 2406480), (37, 2211360), (40, 2045508), (48, 1704590), (51, 1604320), (60, 1363672), (68, 1203240), (74, 1105680), (80, 1022754), (85, 962592), (96, 852295), (102, 802160), (111, 737120), (120, 681836), (136, 601620), (148, 552840), (160, 511377), (170, 481296), (185, 442272), (204, 401080), (222, 368560), (240, 340918), (255, 320864), (271, 301920), (272, 300810), (296, 276420), (340, 240648), (370, 221136), (408, 200540), (444, 184280), (480, 170459), (510, 160432), (542, 150960), (544, 150405), (555, 147424), (592, 138210), (629, 130080), (680, 120324), (740, 110568), (813, 100640), (816, 100270), (888, 92140), (1020, 80216), (1084, 75480), (1110, 73712), (1184, 69105), (1258, 65040), (1355, 60384), (1360, 60162), (1480, 55284), (1626, 50320), (1632, 50135), (1776, 46070), (1887, 43360), (2040, 40108), (2168, 37740), (2220, 36856), (2516, 32520), (2710, 30192), (2720, 30081), (2960, 27642), (3145, 26016), (3252, 25160), (3552, 23035), (3774, 21680), (4065, 20128), (4080, 20054), (4336, 18870), (4440, 18428), (4607, 17760), (5032, 16260), (5420, 15096), (5920, 13821), (6290, 13008), (6504, 12580), (7548, 10840), (8130, 10064), (8160, 10027), (8672, 9435), (8880, 9214)]