419205280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 144

約数和(自身を含む): 1101953160

約数和(自身を除く): 682747880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 65, 80, 86, 104, 109, 130, 160, 172, 208, 215, 218, 260, 344, 416, 430, 436, 520, 545, 559, 688, 860, 872, 1040, 1090, 1118, 1376, 1417, 1720, 1744, 1849, 2080, 2180, 2236, 2795, 2834, 3440, 3488, 3698, 4360, 4472, 4687, 5590, 5668, 6880, 7085, 7396, 8720, 8944, 9245, 9374, 11180, 11336, 14170, 14792, 17440, 17888, 18490, 18748, 22360, 22672, 23435, 24037, 28340, 29584, 36980, 37496, 44720, 45344, 46870, 48074, 56680, 59168, 60931, 73960, 74992, 89440, 93740, 96148, 113360, 120185, 121862, 147920, 149984, 187480, 192296, 201541, 226720, 240370, 243724, 295840, 304655, 374960, 384592, 403082, 480740, 487448, 609310, 749920, 769184, 806164, 961480, 974896, 1007705, 1218620, 1612328, 1922960, 1949792, 2015410, 2437240, 2620033, 3224656, 3845920, 4030820, 4874480, 5240066, 6449312, 8061640, 9748960, 10480132, 13100165, 16123280, 20960264, 26200330, 32246560, 41920528, 52400660, 83841056, 104801320, 209602640, 419205280]

約数ペア:

[(1, 419205280), (2, 209602640), (4, 104801320), (5, 83841056), (8, 52400660), (10, 41920528), (13, 32246560), (16, 26200330), (20, 20960264), (26, 16123280), (32, 13100165), (40, 10480132), (43, 9748960), (52, 8061640), (65, 6449312), (80, 5240066), (86, 4874480), (104, 4030820), (109, 3845920), (130, 3224656), (160, 2620033), (172, 2437240), (208, 2015410), (215, 1949792), (218, 1922960), (260, 1612328), (344, 1218620), (416, 1007705), (430, 974896), (436, 961480), (520, 806164), (545, 769184), (559, 749920), (688, 609310), (860, 487448), (872, 480740), (1040, 403082), (1090, 384592), (1118, 374960), (1376, 304655), (1417, 295840), (1720, 243724), (1744, 240370), (1849, 226720), (2080, 201541), (2180, 192296), (2236, 187480), (2795, 149984), (2834, 147920), (3440, 121862), (3488, 120185), (3698, 113360), (4360, 96148), (4472, 93740), (4687, 89440), (5590, 74992), (5668, 73960), (6880, 60931), (7085, 59168), (7396, 56680), (8720, 48074), (8944, 46870), (9245, 45344), (9374, 44720), (11180, 37496), (11336, 36980), (14170, 29584), (14792, 28340), (17440, 24037), (17888, 23435), (18490, 22672), (18748, 22360)]