1997809920

素因数分解:

$2^8\times 3^6\times 5^1\times {\mathrm{2141}}^1$

素因数の和:2180

約数の個数: 252

約数和(自身を含む): 7178137596

約数和(自身を除く): 5180327676

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 540, 576, 640, 648, 720, 729, 768, 810, 864, 960, 972, 1080, 1152, 1215, 1280, 1296, 1440, 1458, 1620, 1728, 1920, 1944, 2141, 2160, 2304, 2430, 2592, 2880, 2916, 3240, 3456, 3645, 3840, 3888, 4282, 4320, 4860, 5184, 5760, 5832, 6423, 6480, 6912, 7290, 7776, 8564, 8640, 9720, 10368, 10705, 11520, 11664, 12846, 12960, 14580, 15552, 17128, 17280, 19269, 19440, 20736, 21410, 23328, 25692, 25920, 29160, 31104, 32115, 34256, 34560, 38538, 38880, 42820, 46656, 51384, 51840, 57807, 58320, 62208, 64230, 68512, 77076, 77760, 85640, 93312, 96345, 102768, 103680, 115614, 116640, 128460, 137024, 154152, 155520, 171280, 173421, 186624, 192690, 205536, 231228, 233280, 256920, 274048, 289035, 308304, 311040, 342560, 346842, 385380, 411072, 462456, 466560, 513840, 520263, 548096, 578070, 616608, 685120, 693684, 770760, 822144, 867105, 924912, 933120, 1027680, 1040526, 1156140, 1233216, 1370240, 1387368, 1541520, 1560789, 1644288, 1734210, 1849824, 2055360, 2081052, 2312280, 2466432, 2601315, 2740480, 2774736, 3083040, 3121578, 3468420, 3699648, 4110720, 4162104, 4624560, 4932864, 5202630, 5549472, 6166080, 6243156, 6936840, 7399296, 7803945, 8221440, 8324208, 9249120, 10405260, 11098944, 12332160, 12486312, 13873680, 14798592, 15607890, 16648416, 18498240, 20810520, 22197888, 24664320, 24972624, 27747360, 31215780, 33296832, 36996480, 41621040, 44395776, 49945248, 55494720, 62431560, 66593664, 73992960, 83242080, 99890496, 110989440, 124863120, 133187328, 166484160, 199780992, 221978880, 249726240, 332968320, 399561984, 499452480, 665936640, 998904960, 1997809920]

約数ペア:

[(1, 1997809920), (2, 998904960), (3, 665936640), (4, 499452480), (5, 399561984), (6, 332968320), (8, 249726240), (9, 221978880), (10, 199780992), (12, 166484160), (15, 133187328), (16, 124863120), (18, 110989440), (20, 99890496), (24, 83242080), (27, 73992960), (30, 66593664), (32, 62431560), (36, 55494720), (40, 49945248), (45, 44395776), (48, 41621040), (54, 36996480), (60, 33296832), (64, 31215780), (72, 27747360), (80, 24972624), (81, 24664320), (90, 22197888), (96, 20810520), (108, 18498240), (120, 16648416), (128, 15607890), (135, 14798592), (144, 13873680), (160, 12486312), (162, 12332160), (180, 11098944), (192, 10405260), (216, 9249120), (240, 8324208), (243, 8221440), (256, 7803945), (270, 7399296), (288, 6936840), (320, 6243156), (324, 6166080), (360, 5549472), (384, 5202630), (405, 4932864), (432, 4624560), (480, 4162104), (486, 4110720), (540, 3699648), (576, 3468420), (640, 3121578), (648, 3083040), (720, 2774736), (729, 2740480), (768, 2601315), (810, 2466432), (864, 2312280), (960, 2081052), (972, 2055360), (1080, 1849824), (1152, 1734210), (1215, 1644288), (1280, 1560789), (1296, 1541520), (1440, 1387368), (1458, 1370240), (1620, 1233216), (1728, 1156140), (1920, 1040526), (1944, 1027680), (2141, 933120), (2160, 924912), (2304, 867105), (2430, 822144), (2592, 770760), (2880, 693684), (2916, 685120), (3240, 616608), (3456, 578070), (3645, 548096), (3840, 520263), (3888, 513840), (4282, 466560), (4320, 462456), (4860, 411072), (5184, 385380), (5760, 346842), (5832, 342560), (6423, 311040), (6480, 308304), (6912, 289035), (7290, 274048), (7776, 256920), (8564, 233280), (8640, 231228), (9720, 205536), (10368, 192690), (10705, 186624), (11520, 173421), (11664, 171280), (12846, 155520), (12960, 154152), (14580, 137024), (15552, 128460), (17128, 116640), (17280, 115614), (19269, 103680), (19440, 102768), (20736, 96345), (21410, 93312), (23328, 85640), (25692, 77760), (25920, 77076), (29160, 68512), (31104, 64230), (32115, 62208), (34256, 58320), (34560, 57807), (38538, 51840), (38880, 51384), (42820, 46656)]