20171897680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1\times {\mathrm{907}}^1$

素因数の和:1257

約数の個数: 160

約数和(自身を含む): 51882393600

約数和(自身を除く): 31710495920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 127, 176, 199, 220, 254, 398, 440, 508, 635, 796, 880, 907, 995, 1016, 1270, 1397, 1592, 1814, 1990, 2032, 2189, 2540, 2794, 3184, 3628, 3980, 4378, 4535, 5080, 5588, 6985, 7256, 7960, 8756, 9070, 9977, 10160, 10945, 11176, 13970, 14512, 15920, 17512, 18140, 19954, 21890, 22352, 25273, 27940, 35024, 36280, 39908, 43780, 49885, 50546, 55880, 72560, 79816, 87560, 99770, 101092, 111760, 115189, 126365, 159632, 175120, 180493, 199540, 202184, 230378, 252730, 278003, 360986, 399080, 404368, 460756, 505460, 556006, 575945, 721972, 798160, 902465, 921512, 1010920, 1112012, 1151890, 1267079, 1390015, 1443944, 1804930, 1843024, 1985423, 2021840, 2224024, 2303780, 2534158, 2780030, 2887888, 3609860, 3970846, 4448048, 4607560, 5068316, 5560060, 6335395, 7219720, 7941692, 9215120, 9927115, 10136632, 11120120, 12670790, 14439440, 15883384, 19854230, 20273264, 22240240, 22922611, 25341580, 31766768, 39708460, 45845222, 50683160, 79416920, 91690444, 101366320, 114613055, 158833840, 183380888, 229226110, 252148721, 366761776, 458452220, 504297442, 916904440, 1008594884, 1260743605, 1833808880, 2017189768, 2521487210, 4034379536, 5042974420, 10085948840, 20171897680]

約数ペア:

[(1, 20171897680), (2, 10085948840), (4, 5042974420), (5, 4034379536), (8, 2521487210), (10, 2017189768), (11, 1833808880), (16, 1260743605), (20, 1008594884), (22, 916904440), (40, 504297442), (44, 458452220), (55, 366761776), (80, 252148721), (88, 229226110), (110, 183380888), (127, 158833840), (176, 114613055), (199, 101366320), (220, 91690444), (254, 79416920), (398, 50683160), (440, 45845222), (508, 39708460), (635, 31766768), (796, 25341580), (880, 22922611), (907, 22240240), (995, 20273264), (1016, 19854230), (1270, 15883384), (1397, 14439440), (1592, 12670790), (1814, 11120120), (1990, 10136632), (2032, 9927115), (2189, 9215120), (2540, 7941692), (2794, 7219720), (3184, 6335395), (3628, 5560060), (3980, 5068316), (4378, 4607560), (4535, 4448048), (5080, 3970846), (5588, 3609860), (6985, 2887888), (7256, 2780030), (7960, 2534158), (8756, 2303780), (9070, 2224024), (9977, 2021840), (10160, 1985423), (10945, 1843024), (11176, 1804930), (13970, 1443944), (14512, 1390015), (15920, 1267079), (17512, 1151890), (18140, 1112012), (19954, 1010920), (21890, 921512), (22352, 902465), (25273, 798160), (27940, 721972), (35024, 575945), (36280, 556006), (39908, 505460), (43780, 460756), (49885, 404368), (50546, 399080), (55880, 360986), (72560, 278003), (79816, 252730), (87560, 230378), (99770, 202184), (101092, 199540), (111760, 180493), (115189, 175120), (126365, 159632)]