2191280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:83

約数の個数: 120

約数和(自身を含む): 6530832

約数和(自身を除く): 4339552

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 43, 49, 52, 56, 65, 70, 80, 86, 91, 98, 104, 112, 130, 140, 172, 182, 196, 208, 215, 245, 260, 280, 301, 344, 364, 392, 430, 455, 490, 520, 559, 560, 602, 637, 688, 728, 784, 860, 910, 980, 1040, 1118, 1204, 1274, 1456, 1505, 1720, 1820, 1960, 2107, 2236, 2408, 2548, 2795, 3010, 3185, 3440, 3640, 3913, 3920, 4214, 4472, 4816, 5096, 5590, 6020, 6370, 7280, 7826, 8428, 8944, 10192, 10535, 11180, 12040, 12740, 15652, 16856, 19565, 21070, 22360, 24080, 25480, 27391, 31304, 33712, 39130, 42140, 44720, 50960, 54782, 62608, 78260, 84280, 109564, 136955, 156520, 168560, 219128, 273910, 313040, 438256, 547820, 1095640, 2191280]

約数ペア:

[(1, 2191280), (2, 1095640), (4, 547820), (5, 438256), (7, 313040), (8, 273910), (10, 219128), (13, 168560), (14, 156520), (16, 136955), (20, 109564), (26, 84280), (28, 78260), (35, 62608), (40, 54782), (43, 50960), (49, 44720), (52, 42140), (56, 39130), (65, 33712), (70, 31304), (80, 27391), (86, 25480), (91, 24080), (98, 22360), (104, 21070), (112, 19565), (130, 16856), (140, 15652), (172, 12740), (182, 12040), (196, 11180), (208, 10535), (215, 10192), (245, 8944), (260, 8428), (280, 7826), (301, 7280), (344, 6370), (364, 6020), (392, 5590), (430, 5096), (455, 4816), (490, 4472), (520, 4214), (559, 3920), (560, 3913), (602, 3640), (637, 3440), (688, 3185), (728, 3010), (784, 2795), (860, 2548), (910, 2408), (980, 2236), (1040, 2107), (1118, 1960), (1204, 1820), (1274, 1720), (1456, 1505)]