81338465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1327}}^1$

素因数の和:1409

約数の個数: 32

約数和(自身を含む): 112444416

約数和(自身を除く): 31105951

約数列:

[1, 5, 13, 23, 41, 65, 115, 205, 299, 533, 943, 1327, 1495, 2665, 4715, 6635, 12259, 17251, 30521, 54407, 61295, 86255, 152605, 272035, 396773, 707291, 1251361, 1983865, 3536455, 6256805, 16267693, 81338465]

約数ペア:

[(1, 81338465), (5, 16267693), (13, 6256805), (23, 3536455), (41, 1983865), (65, 1251361), (115, 707291), (205, 396773), (299, 272035), (533, 152605), (943, 86255), (1327, 61295), (1495, 54407), (2665, 30521), (4715, 17251), (6635, 12259)]