31697120

素因数分解:

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

素因数の和:353

約数の個数: 144

約数和(自身を含む): 94112928

約数和(自身を除く): 62415808

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, 364, 392, 416, 455, 490, 520, 560, 622, 637, 728, 784, 910, 980, 1040, 1120, 1244, 1274, 1456, 1555, 1568, 1820, 1960, 2080, 2177, 2488, 2548, 2912, 3110, 3185, 3640, 3920, 4043, 4354, 4976, 5096, 6220, 6370, 7280, 7840, 8086, 8708, 9952, 10192, 10885, 12440, 12740, 14560, 15239, 16172, 17416, 20215, 20384, 21770, 24880, 25480, 28301, 30478, 32344, 34832, 40430, 43540, 49760, 50960, 56602, 60956, 64688, 69664, 76195, 80860, 87080, 101920, 113204, 121912, 129376, 141505, 152390, 161720, 174160, 198107, 226408, 243824, 283010, 304780, 323440, 348320, 396214, 452816, 487648, 566020, 609560, 646880, 792428, 905632, 990535, 1132040, 1219120, 1584856, 1981070, 2264080, 2438240, 3169712, 3962140, 4528160, 6339424, 7924280, 15848560, 31697120]

約数ペア:

[(1, 31697120), (2, 15848560), (4, 7924280), (5, 6339424), (7, 4528160), (8, 3962140), (10, 3169712), (13, 2438240), (14, 2264080), (16, 1981070), (20, 1584856), (26, 1219120), (28, 1132040), (32, 990535), (35, 905632), (40, 792428), (49, 646880), (52, 609560), (56, 566020), (65, 487648), (70, 452816), (80, 396214), (91, 348320), (98, 323440), (104, 304780), (112, 283010), (130, 243824), (140, 226408), (160, 198107), (182, 174160), (196, 161720), (208, 152390), (224, 141505), (245, 129376), (260, 121912), (280, 113204), (311, 101920), (364, 87080), (392, 80860), (416, 76195), (455, 69664), (490, 64688), (520, 60956), (560, 56602), (622, 50960), (637, 49760), (728, 43540), (784, 40430), (910, 34832), (980, 32344), (1040, 30478), (1120, 28301), (1244, 25480), (1274, 24880), (1456, 21770), (1555, 20384), (1568, 20215), (1820, 17416), (1960, 16172), (2080, 15239), (2177, 14560), (2488, 12740), (2548, 12440), (2912, 10885), (3110, 10192), (3185, 9952), (3640, 8708), (3920, 8086), (4043, 7840), (4354, 7280), (4976, 6370), (5096, 6220)]