81357968

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{2593}}^1$

素因数の和:2691

約数の個数: 40

約数和(自身を含む): 165009528

約数和(自身を除く): 83651560

約数列:

[1, 2, 4, 8, 16, 37, 53, 74, 106, 148, 212, 296, 424, 592, 848, 1961, 2593, 3922, 5186, 7844, 10372, 15688, 20744, 31376, 41488, 95941, 137429, 191882, 274858, 383764, 549716, 767528, 1099432, 1535056, 2198864, 5084873, 10169746, 20339492, 40678984, 81357968]

約数ペア:

[(1, 81357968), (2, 40678984), (4, 20339492), (8, 10169746), (16, 5084873), (37, 2198864), (53, 1535056), (74, 1099432), (106, 767528), (148, 549716), (212, 383764), (296, 274858), (424, 191882), (592, 137429), (848, 95941), (1961, 41488), (2593, 31376), (3922, 20744), (5186, 15688), (7844, 10372)]