12921440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 35562240

約数和(自身を除く): 22640800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 83, 112, 139, 140, 160, 166, 224, 278, 280, 332, 415, 556, 560, 581, 664, 695, 830, 973, 1112, 1120, 1162, 1328, 1390, 1660, 1946, 2224, 2324, 2656, 2780, 2905, 3320, 3892, 4448, 4648, 4865, 5560, 5810, 6640, 7784, 9296, 9730, 11120, 11537, 11620, 13280, 15568, 18592, 19460, 22240, 23074, 23240, 31136, 38920, 46148, 46480, 57685, 77840, 80759, 92296, 92960, 115370, 155680, 161518, 184592, 230740, 323036, 369184, 403795, 461480, 646072, 807590, 922960, 1292144, 1615180, 1845920, 2584288, 3230360, 6460720, 12921440]

約数ペア:

[(1, 12921440), (2, 6460720), (4, 3230360), (5, 2584288), (7, 1845920), (8, 1615180), (10, 1292144), (14, 922960), (16, 807590), (20, 646072), (28, 461480), (32, 403795), (35, 369184), (40, 323036), (56, 230740), (70, 184592), (80, 161518), (83, 155680), (112, 115370), (139, 92960), (140, 92296), (160, 80759), (166, 77840), (224, 57685), (278, 46480), (280, 46148), (332, 38920), (415, 31136), (556, 23240), (560, 23074), (581, 22240), (664, 19460), (695, 18592), (830, 15568), (973, 13280), (1112, 11620), (1120, 11537), (1162, 11120), (1328, 9730), (1390, 9296), (1660, 7784), (1946, 6640), (2224, 5810), (2324, 5560), (2656, 4865), (2780, 4648), (2905, 4448), (3320, 3892)]