221009880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1$

素因数の和:618

約数の個数: 256

約数和(自身を含む): 839623680

約数和(自身を除く): 618613800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 37, 39, 40, 42, 52, 56, 60, 65, 70, 74, 78, 84, 91, 104, 105, 111, 120, 130, 140, 148, 156, 168, 182, 185, 195, 210, 222, 259, 260, 273, 280, 296, 312, 364, 370, 390, 420, 444, 455, 481, 518, 520, 546, 547, 555, 728, 740, 777, 780, 840, 888, 910, 962, 1036, 1092, 1094, 1110, 1295, 1365, 1443, 1480, 1554, 1560, 1641, 1820, 1924, 2072, 2184, 2188, 2220, 2405, 2590, 2730, 2735, 2886, 3108, 3282, 3367, 3640, 3829, 3848, 3885, 4376, 4440, 4810, 5180, 5460, 5470, 5772, 6216, 6564, 6734, 7111, 7215, 7658, 7770, 8205, 9620, 10101, 10360, 10920, 10940, 11487, 11544, 13128, 13468, 14222, 14430, 15316, 15540, 16410, 16835, 19145, 19240, 20202, 20239, 21333, 21880, 22974, 26936, 28444, 28860, 30632, 31080, 32820, 33670, 35555, 38290, 40404, 40478, 42666, 45948, 49777, 50505, 56888, 57435, 57720, 60717, 65640, 67340, 71110, 76580, 80808, 80956, 85332, 91896, 99554, 101010, 101195, 106665, 114870, 121434, 134680, 141673, 142220, 149331, 153160, 161912, 170664, 199108, 202020, 202390, 213330, 229740, 242868, 248885, 263107, 283346, 284440, 298662, 303585, 398216, 404040, 404780, 425019, 426660, 459480, 485736, 497770, 526214, 566692, 597324, 607170, 708365, 746655, 789321, 809560, 850038, 853320, 995540, 1052428, 1133384, 1194648, 1214340, 1315535, 1416730, 1493310, 1578642, 1700076, 1841749, 1991080, 2104856, 2125095, 2428680, 2631070, 2833460, 2986620, 3157284, 3400152, 3683498, 3946605, 4250190, 5262140, 5525247, 5666920, 5973240, 6314568, 7366996, 7893210, 8500380, 9208745, 10524280, 11050494, 14733992, 15786420, 17000760, 18417490, 22100988, 27626235, 31572840, 36834980, 44201976, 55252470, 73669960, 110504940, 221009880]

約数ペア:

[(1, 221009880), (2, 110504940), (3, 73669960), (4, 55252470), (5, 44201976), (6, 36834980), (7, 31572840), (8, 27626235), (10, 22100988), (12, 18417490), (13, 17000760), (14, 15786420), (15, 14733992), (20, 11050494), (21, 10524280), (24, 9208745), (26, 8500380), (28, 7893210), (30, 7366996), (35, 6314568), (37, 5973240), (39, 5666920), (40, 5525247), (42, 5262140), (52, 4250190), (56, 3946605), (60, 3683498), (65, 3400152), (70, 3157284), (74, 2986620), (78, 2833460), (84, 2631070), (91, 2428680), (104, 2125095), (105, 2104856), (111, 1991080), (120, 1841749), (130, 1700076), (140, 1578642), (148, 1493310), (156, 1416730), (168, 1315535), (182, 1214340), (185, 1194648), (195, 1133384), (210, 1052428), (222, 995540), (259, 853320), (260, 850038), (273, 809560), (280, 789321), (296, 746655), (312, 708365), (364, 607170), (370, 597324), (390, 566692), (420, 526214), (444, 497770), (455, 485736), (481, 459480), (518, 426660), (520, 425019), (546, 404780), (547, 404040), (555, 398216), (728, 303585), (740, 298662), (777, 284440), (780, 283346), (840, 263107), (888, 248885), (910, 242868), (962, 229740), (1036, 213330), (1092, 202390), (1094, 202020), (1110, 199108), (1295, 170664), (1365, 161912), (1443, 153160), (1480, 149331), (1554, 142220), (1560, 141673), (1641, 134680), (1820, 121434), (1924, 114870), (2072, 106665), (2184, 101195), (2188, 101010), (2220, 99554), (2405, 91896), (2590, 85332), (2730, 80956), (2735, 80808), (2886, 76580), (3108, 71110), (3282, 67340), (3367, 65640), (3640, 60717), (3829, 57720), (3848, 57435), (3885, 56888), (4376, 50505), (4440, 49777), (4810, 45948), (5180, 42666), (5460, 40478), (5470, 40404), (5772, 38290), (6216, 35555), (6564, 33670), (6734, 32820), (7111, 31080), (7215, 30632), (7658, 28860), (7770, 28444), (8205, 26936), (9620, 22974), (10101, 21880), (10360, 21333), (10920, 20239), (10940, 20202), (11487, 19240), (11544, 19145), (13128, 16835), (13468, 16410), (14222, 15540), (14430, 15316)]