81777930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{209687}}^1$

素因数の和:209710

約数の個数: 32

約数和(自身を含む): 211365504

約数和(自身を除く): 129587574

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 209687, 419374, 629061, 1048435, 1258122, 2096870, 2725931, 3145305, 5451862, 6290610, 8177793, 13629655, 16355586, 27259310, 40888965, 81777930]

約数ペア:

[(1, 81777930), (2, 40888965), (3, 27259310), (5, 16355586), (6, 13629655), (10, 8177793), (13, 6290610), (15, 5451862), (26, 3145305), (30, 2725931), (39, 2096870), (65, 1258122), (78, 1048435), (130, 629061), (195, 419374), (390, 209687)]