221879840

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:360

約数の個数: 192

約数和(自身を含む): 660441600

約数和(自身を除く): 438561760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 311, 343, 364, 392, 416, 455, 490, 520, 560, 622, 637, 686, 728, 784, 910, 980, 1040, 1120, 1244, 1274, 1372, 1456, 1555, 1568, 1715, 1820, 1960, 2080, 2177, 2488, 2548, 2744, 2912, 3110, 3185, 3430, 3640, 3920, 4043, 4354, 4459, 4976, 5096, 5488, 6220, 6370, 6860, 7280, 7840, 8086, 8708, 8918, 9952, 10192, 10885, 10976, 12440, 12740, 13720, 14560, 15239, 16172, 17416, 17836, 20215, 20384, 21770, 22295, 24880, 25480, 27440, 28301, 30478, 32344, 34832, 35672, 40430, 43540, 44590, 49760, 50960, 54880, 56602, 60956, 64688, 69664, 71344, 76195, 80860, 87080, 89180, 101920, 106673, 113204, 121912, 129376, 141505, 142688, 152390, 161720, 174160, 178360, 198107, 213346, 226408, 243824, 283010, 304780, 323440, 348320, 356720, 396214, 426692, 452816, 487648, 533365, 566020, 609560, 646880, 713440, 792428, 853384, 905632, 990535, 1066730, 1132040, 1219120, 1386749, 1584856, 1706768, 1981070, 2133460, 2264080, 2438240, 2773498, 3169712, 3413536, 3962140, 4266920, 4528160, 5546996, 6339424, 6933745, 7924280, 8533840, 11093992, 13867490, 15848560, 17067680, 22187984, 27734980, 31697120, 44375968, 55469960, 110939920, 221879840]

約数ペア:

[(1, 221879840), (2, 110939920), (4, 55469960), (5, 44375968), (7, 31697120), (8, 27734980), (10, 22187984), (13, 17067680), (14, 15848560), (16, 13867490), (20, 11093992), (26, 8533840), (28, 7924280), (32, 6933745), (35, 6339424), (40, 5546996), (49, 4528160), (52, 4266920), (56, 3962140), (65, 3413536), (70, 3169712), (80, 2773498), (91, 2438240), (98, 2264080), (104, 2133460), (112, 1981070), (130, 1706768), (140, 1584856), (160, 1386749), (182, 1219120), (196, 1132040), (208, 1066730), (224, 990535), (245, 905632), (260, 853384), (280, 792428), (311, 713440), (343, 646880), (364, 609560), (392, 566020), (416, 533365), (455, 487648), (490, 452816), (520, 426692), (560, 396214), (622, 356720), (637, 348320), (686, 323440), (728, 304780), (784, 283010), (910, 243824), (980, 226408), (1040, 213346), (1120, 198107), (1244, 178360), (1274, 174160), (1372, 161720), (1456, 152390), (1555, 142688), (1568, 141505), (1715, 129376), (1820, 121912), (1960, 113204), (2080, 106673), (2177, 101920), (2488, 89180), (2548, 87080), (2744, 80860), (2912, 76195), (3110, 71344), (3185, 69664), (3430, 64688), (3640, 60956), (3920, 56602), (4043, 54880), (4354, 50960), (4459, 49760), (4976, 44590), (5096, 43540), (5488, 40430), (6220, 35672), (6370, 34832), (6860, 32344), (7280, 30478), (7840, 28301), (8086, 27440), (8708, 25480), (8918, 24880), (9952, 22295), (10192, 21770), (10885, 20384), (10976, 20215), (12440, 17836), (12740, 17416), (13720, 16172), (14560, 15239)]