319355540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:730

約数の個数: 144

約数和(自身を含む): 855807120

約数和(自身を除く): 536451580

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 29, 34, 35, 49, 58, 68, 70, 85, 98, 116, 119, 140, 145, 170, 196, 203, 238, 245, 290, 340, 406, 476, 490, 493, 580, 595, 661, 812, 833, 980, 986, 1015, 1190, 1322, 1421, 1666, 1972, 2030, 2380, 2465, 2644, 2842, 3305, 3332, 3451, 4060, 4165, 4627, 4930, 5684, 6610, 6902, 7105, 8330, 9254, 9860, 11237, 13220, 13804, 14210, 16660, 17255, 18508, 19169, 22474, 23135, 24157, 28420, 32389, 34510, 38338, 44948, 46270, 48314, 56185, 64778, 69020, 76676, 78659, 92540, 95845, 96628, 112370, 120785, 129556, 134183, 157318, 161945, 191690, 224740, 241570, 268366, 314636, 323890, 325873, 383380, 393295, 483140, 536732, 550613, 647780, 651746, 670915, 786590, 939281, 1101226, 1303492, 1341830, 1573180, 1629365, 1878562, 2202452, 2281111, 2683660, 2753065, 3258730, 3757124, 4562222, 4696405, 5506130, 6517460, 9124444, 9392810, 11012260, 11405555, 15967777, 18785620, 22811110, 31935554, 45622220, 63871108, 79838885, 159677770, 319355540]

約数ペア:

[(1, 319355540), (2, 159677770), (4, 79838885), (5, 63871108), (7, 45622220), (10, 31935554), (14, 22811110), (17, 18785620), (20, 15967777), (28, 11405555), (29, 11012260), (34, 9392810), (35, 9124444), (49, 6517460), (58, 5506130), (68, 4696405), (70, 4562222), (85, 3757124), (98, 3258730), (116, 2753065), (119, 2683660), (140, 2281111), (145, 2202452), (170, 1878562), (196, 1629365), (203, 1573180), (238, 1341830), (245, 1303492), (290, 1101226), (340, 939281), (406, 786590), (476, 670915), (490, 651746), (493, 647780), (580, 550613), (595, 536732), (661, 483140), (812, 393295), (833, 383380), (980, 325873), (986, 323890), (1015, 314636), (1190, 268366), (1322, 241570), (1421, 224740), (1666, 191690), (1972, 161945), (2030, 157318), (2380, 134183), (2465, 129556), (2644, 120785), (2842, 112370), (3305, 96628), (3332, 95845), (3451, 92540), (4060, 78659), (4165, 76676), (4627, 69020), (4930, 64778), (5684, 56185), (6610, 48314), (6902, 46270), (7105, 44948), (8330, 38338), (9254, 34510), (9860, 32389), (11237, 28420), (13220, 24157), (13804, 23135), (14210, 22474), (16660, 19169), (17255, 18508)]