21781476720

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{90847}}^1$

素因数の和:90909

約数の個数: 200

約数和(自身を含む): 77695753344

約数和(自身を除く): 55914276624

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 81, 90, 108, 111, 120, 135, 144, 148, 162, 180, 185, 216, 222, 240, 270, 296, 324, 333, 360, 370, 405, 432, 444, 540, 555, 592, 648, 666, 720, 740, 810, 888, 999, 1080, 1110, 1296, 1332, 1480, 1620, 1665, 1776, 1998, 2160, 2220, 2664, 2960, 2997, 3240, 3330, 3996, 4440, 4995, 5328, 5994, 6480, 6660, 7992, 8880, 9990, 11988, 13320, 14985, 15984, 19980, 23976, 26640, 29970, 39960, 47952, 59940, 79920, 90847, 119880, 181694, 239760, 272541, 363388, 454235, 545082, 726776, 817623, 908470, 1090164, 1362705, 1453552, 1635246, 1816940, 2180328, 2452869, 2725410, 3270492, 3361339, 3633880, 4088115, 4360656, 4905738, 5450820, 6540984, 6722678, 7267760, 7358607, 8176230, 9811476, 10084017, 10901640, 12264345, 13081968, 13445356, 14717214, 16352460, 16806695, 19622952, 20168034, 21803280, 24528690, 26890712, 29434428, 30252051, 32704920, 33613390, 36793035, 39245904, 40336068, 49057380, 50420085, 53781424, 58868856, 60504102, 65409840, 67226780, 73586070, 80672136, 90756153, 98114760, 100840170, 117737712, 121008204, 134453560, 147172140, 151260255, 161344272, 181512306, 196229520, 201680340, 242016408, 268907120, 272268459, 294344280, 302520510, 363024612, 403360680, 453780765, 484032816, 544536918, 588688560, 605041020, 726049224, 806721360, 907561530, 1089073836, 1210082040, 1361342295, 1452098448, 1815123060, 2178147672, 2420164080, 2722684590, 3630246120, 4356295344, 5445369180, 7260492240, 10890738360, 21781476720]

約数ペア:

[(1, 21781476720), (2, 10890738360), (3, 7260492240), (4, 5445369180), (5, 4356295344), (6, 3630246120), (8, 2722684590), (9, 2420164080), (10, 2178147672), (12, 1815123060), (15, 1452098448), (16, 1361342295), (18, 1210082040), (20, 1089073836), (24, 907561530), (27, 806721360), (30, 726049224), (36, 605041020), (37, 588688560), (40, 544536918), (45, 484032816), (48, 453780765), (54, 403360680), (60, 363024612), (72, 302520510), (74, 294344280), (80, 272268459), (81, 268907120), (90, 242016408), (108, 201680340), (111, 196229520), (120, 181512306), (135, 161344272), (144, 151260255), (148, 147172140), (162, 134453560), (180, 121008204), (185, 117737712), (216, 100840170), (222, 98114760), (240, 90756153), (270, 80672136), (296, 73586070), (324, 67226780), (333, 65409840), (360, 60504102), (370, 58868856), (405, 53781424), (432, 50420085), (444, 49057380), (540, 40336068), (555, 39245904), (592, 36793035), (648, 33613390), (666, 32704920), (720, 30252051), (740, 29434428), (810, 26890712), (888, 24528690), (999, 21803280), (1080, 20168034), (1110, 19622952), (1296, 16806695), (1332, 16352460), (1480, 14717214), (1620, 13445356), (1665, 13081968), (1776, 12264345), (1998, 10901640), (2160, 10084017), (2220, 9811476), (2664, 8176230), (2960, 7358607), (2997, 7267760), (3240, 6722678), (3330, 6540984), (3996, 5450820), (4440, 4905738), (4995, 4360656), (5328, 4088115), (5994, 3633880), (6480, 3361339), (6660, 3270492), (7992, 2725410), (8880, 2452869), (9990, 2180328), (11988, 1816940), (13320, 1635246), (14985, 1453552), (15984, 1362705), (19980, 1090164), (23976, 908470), (26640, 817623), (29970, 726776), (39960, 545082), (47952, 454235), (59940, 363388), (79920, 272541), (90847, 239760), (119880, 181694)]