81906916

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5233}}^1$

素因数の和:5300

約数の個数: 48

約数和(自身を含む): 180552064

約数和(自身を除く): 98645148

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 2236, 3913, 5233, 7826, 10466, 15652, 20932, 36631, 68029, 73262, 136058, 146524, 225019, 272116, 450038, 476203, 900076, 952406, 1575133, 1904812, 2925247, 3150266, 5850494, 6300532, 11700988, 20476729, 40953458, 81906916]

約数ペア:

[(1, 81906916), (2, 40953458), (4, 20476729), (7, 11700988), (13, 6300532), (14, 5850494), (26, 3150266), (28, 2925247), (43, 1904812), (52, 1575133), (86, 952406), (91, 900076), (172, 476203), (182, 450038), (301, 272116), (364, 225019), (559, 146524), (602, 136058), (1118, 73262), (1204, 68029), (2236, 36631), (3913, 20932), (5233, 15652), (7826, 10466)]