221343720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 256

約数和(自身を含む): 774144000

約数和(自身を除く): 552800280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 31, 39, 40, 46, 52, 60, 62, 65, 69, 78, 92, 93, 104, 115, 120, 124, 130, 138, 155, 156, 184, 186, 195, 199, 230, 248, 260, 276, 299, 310, 312, 345, 372, 390, 398, 403, 460, 465, 520, 552, 597, 598, 620, 690, 713, 744, 780, 796, 806, 897, 920, 930, 995, 1194, 1196, 1209, 1240, 1380, 1426, 1495, 1560, 1592, 1612, 1794, 1860, 1990, 2015, 2139, 2388, 2392, 2418, 2587, 2760, 2852, 2985, 2990, 3224, 3565, 3588, 3720, 3980, 4030, 4278, 4485, 4577, 4776, 4836, 5174, 5704, 5970, 5980, 6045, 6169, 7130, 7176, 7761, 7960, 8060, 8556, 8970, 9154, 9269, 9672, 10348, 10695, 11940, 11960, 12090, 12338, 12935, 13731, 14260, 15522, 16120, 17112, 17940, 18308, 18507, 18538, 20696, 21390, 22885, 23880, 24180, 24676, 25870, 27462, 27807, 28520, 30845, 31044, 35880, 36616, 37014, 37076, 38805, 42780, 45770, 46345, 48360, 49352, 51740, 54924, 55614, 59501, 61690, 62088, 68655, 74028, 74152, 77610, 80197, 85560, 91540, 92535, 92690, 103480, 109848, 111228, 119002, 123380, 137310, 139035, 141887, 148056, 155220, 160394, 178503, 183080, 185070, 185380, 222456, 238004, 240591, 246760, 274620, 278070, 283774, 297505, 310440, 320788, 357006, 370140, 370760, 400985, 425661, 476008, 481182, 549240, 556140, 567548, 595010, 641576, 709435, 714012, 740280, 801970, 851322, 892515, 962364, 1112280, 1135096, 1190020, 1202955, 1418870, 1428024, 1603940, 1702644, 1785030, 1844531, 1924728, 2128305, 2380040, 2405910, 2837740, 3207880, 3405288, 3570060, 3689062, 4256610, 4811820, 5533593, 5675480, 7140120, 7378124, 8513220, 9222655, 9623640, 11067186, 14756248, 17026440, 18445310, 22134372, 27667965, 36890620, 44268744, 55335930, 73781240, 110671860, 221343720]

約数ペア:

[(1, 221343720), (2, 110671860), (3, 73781240), (4, 55335930), (5, 44268744), (6, 36890620), (8, 27667965), (10, 22134372), (12, 18445310), (13, 17026440), (15, 14756248), (20, 11067186), (23, 9623640), (24, 9222655), (26, 8513220), (30, 7378124), (31, 7140120), (39, 5675480), (40, 5533593), (46, 4811820), (52, 4256610), (60, 3689062), (62, 3570060), (65, 3405288), (69, 3207880), (78, 2837740), (92, 2405910), (93, 2380040), (104, 2128305), (115, 1924728), (120, 1844531), (124, 1785030), (130, 1702644), (138, 1603940), (155, 1428024), (156, 1418870), (184, 1202955), (186, 1190020), (195, 1135096), (199, 1112280), (230, 962364), (248, 892515), (260, 851322), (276, 801970), (299, 740280), (310, 714012), (312, 709435), (345, 641576), (372, 595010), (390, 567548), (398, 556140), (403, 549240), (460, 481182), (465, 476008), (520, 425661), (552, 400985), (597, 370760), (598, 370140), (620, 357006), (690, 320788), (713, 310440), (744, 297505), (780, 283774), (796, 278070), (806, 274620), (897, 246760), (920, 240591), (930, 238004), (995, 222456), (1194, 185380), (1196, 185070), (1209, 183080), (1240, 178503), (1380, 160394), (1426, 155220), (1495, 148056), (1560, 141887), (1592, 139035), (1612, 137310), (1794, 123380), (1860, 119002), (1990, 111228), (2015, 109848), (2139, 103480), (2388, 92690), (2392, 92535), (2418, 91540), (2587, 85560), (2760, 80197), (2852, 77610), (2985, 74152), (2990, 74028), (3224, 68655), (3565, 62088), (3588, 61690), (3720, 59501), (3980, 55614), (4030, 54924), (4278, 51740), (4485, 49352), (4577, 48360), (4776, 46345), (4836, 45770), (5174, 42780), (5704, 38805), (5970, 37076), (5980, 37014), (6045, 36616), (6169, 35880), (7130, 31044), (7176, 30845), (7761, 28520), (7960, 27807), (8060, 27462), (8556, 25870), (8970, 24676), (9154, 24180), (9269, 23880), (9672, 22885), (10348, 21390), (10695, 20696), (11940, 18538), (11960, 18507), (12090, 18308), (12338, 17940), (12935, 17112), (13731, 16120), (14260, 15522)]