221228280

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2251}}^1$

素因数の和:2291

約数の個数: 256

約数和(自身を含む): 908006400

約数和(自身を除く): 686778120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 52, 54, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 108, 117, 120, 126, 130, 135, 140, 156, 168, 180, 182, 189, 195, 210, 216, 234, 252, 260, 270, 273, 280, 312, 315, 351, 360, 364, 378, 390, 420, 455, 468, 504, 520, 540, 546, 585, 630, 702, 728, 756, 780, 819, 840, 910, 936, 945, 1080, 1092, 1170, 1260, 1365, 1404, 1512, 1560, 1638, 1755, 1820, 1890, 2184, 2251, 2340, 2457, 2520, 2730, 2808, 3276, 3510, 3640, 3780, 4095, 4502, 4680, 4914, 5460, 6552, 6753, 7020, 7560, 8190, 9004, 9828, 10920, 11255, 12285, 13506, 14040, 15757, 16380, 18008, 19656, 20259, 22510, 24570, 27012, 29263, 31514, 32760, 33765, 40518, 45020, 47271, 49140, 54024, 58526, 60777, 63028, 67530, 78785, 81036, 87789, 90040, 94542, 98280, 101295, 117052, 121554, 126056, 135060, 141813, 146315, 157570, 162072, 175578, 189084, 202590, 204841, 234104, 236355, 243108, 263367, 270120, 283626, 292630, 303885, 315140, 351156, 378168, 405180, 409682, 425439, 438945, 472710, 486216, 526734, 567252, 585260, 607770, 614523, 630280, 702312, 709065, 790101, 810360, 819364, 850878, 877890, 945420, 1024205, 1053468, 1134504, 1170520, 1215540, 1229046, 1316835, 1418130, 1580202, 1638728, 1701756, 1755780, 1843569, 1890840, 2048410, 2106936, 2127195, 2431080, 2458092, 2633670, 2836260, 3072615, 3160404, 3403512, 3511560, 3687138, 3950505, 4096820, 4254390, 4916184, 5267340, 5530707, 5672520, 6145230, 6320808, 7374276, 7901010, 8193640, 8508780, 9217845, 10534680, 11061414, 12290460, 14748552, 15802020, 17017560, 18435690, 22122828, 24580920, 27653535, 31604040, 36871380, 44245656, 55307070, 73742760, 110614140, 221228280]

約数ペア:

[(1, 221228280), (2, 110614140), (3, 73742760), (4, 55307070), (5, 44245656), (6, 36871380), (7, 31604040), (8, 27653535), (9, 24580920), (10, 22122828), (12, 18435690), (13, 17017560), (14, 15802020), (15, 14748552), (18, 12290460), (20, 11061414), (21, 10534680), (24, 9217845), (26, 8508780), (27, 8193640), (28, 7901010), (30, 7374276), (35, 6320808), (36, 6145230), (39, 5672520), (40, 5530707), (42, 5267340), (45, 4916184), (52, 4254390), (54, 4096820), (56, 3950505), (60, 3687138), (63, 3511560), (65, 3403512), (70, 3160404), (72, 3072615), (78, 2836260), (84, 2633670), (90, 2458092), (91, 2431080), (104, 2127195), (105, 2106936), (108, 2048410), (117, 1890840), (120, 1843569), (126, 1755780), (130, 1701756), (135, 1638728), (140, 1580202), (156, 1418130), (168, 1316835), (180, 1229046), (182, 1215540), (189, 1170520), (195, 1134504), (210, 1053468), (216, 1024205), (234, 945420), (252, 877890), (260, 850878), (270, 819364), (273, 810360), (280, 790101), (312, 709065), (315, 702312), (351, 630280), (360, 614523), (364, 607770), (378, 585260), (390, 567252), (420, 526734), (455, 486216), (468, 472710), (504, 438945), (520, 425439), (540, 409682), (546, 405180), (585, 378168), (630, 351156), (702, 315140), (728, 303885), (756, 292630), (780, 283626), (819, 270120), (840, 263367), (910, 243108), (936, 236355), (945, 234104), (1080, 204841), (1092, 202590), (1170, 189084), (1260, 175578), (1365, 162072), (1404, 157570), (1512, 146315), (1560, 141813), (1638, 135060), (1755, 126056), (1820, 121554), (1890, 117052), (2184, 101295), (2251, 98280), (2340, 94542), (2457, 90040), (2520, 87789), (2730, 81036), (2808, 78785), (3276, 67530), (3510, 63028), (3640, 60777), (3780, 58526), (4095, 54024), (4502, 49140), (4680, 47271), (4914, 45020), (5460, 40518), (6552, 33765), (6753, 32760), (7020, 31514), (7560, 29263), (8190, 27012), (9004, 24570), (9828, 22510), (10920, 20259), (11255, 19656), (12285, 18008), (13506, 16380), (14040, 15757)]