81940312

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{641}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 167754600

約数和(自身を除く): 85814288

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 76, 116, 152, 232, 551, 641, 841, 1102, 1282, 1682, 2204, 2564, 3364, 4408, 5128, 6728, 12179, 15979, 18589, 24358, 31958, 37178, 48716, 63916, 74356, 97432, 127832, 148712, 353191, 539081, 706382, 1078162, 1412764, 2156324, 2825528, 4312648, 10242539, 20485078, 40970156, 81940312]

約数ペア:

[(1, 81940312), (2, 40970156), (4, 20485078), (8, 10242539), (19, 4312648), (29, 2825528), (38, 2156324), (58, 1412764), (76, 1078162), (116, 706382), (152, 539081), (232, 353191), (551, 148712), (641, 127832), (841, 97432), (1102, 74356), (1282, 63916), (1682, 48716), (2204, 37178), (2564, 31958), (3364, 24358), (4408, 18589), (5128, 15979), (6728, 12179)]