20781567382082

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1\times {\mathrm{923437}}^1$

素因数の和:923763

約数の個数: 64

約数和(自身を含む): 34716067997184

約数和(自身を除く): 13934500615102

約数列:

[1, 2, 13, 26, 71, 73, 142, 146, 167, 334, 923, 949, 1846, 1898, 2171, 4342, 5183, 10366, 11857, 12191, 23714, 24382, 67379, 134758, 154141, 158483, 308282, 316966, 865561, 923437, 1731122, 1846874, 11252293, 12004681, 22504586, 24009362, 65564027, 67410901, 131128054, 134821802, 154213979, 308427958, 852332351, 876341713, 1704664702, 1752683426, 2004781727, 4009563454, 4786173971, 9572347942, 10949192509, 11257620467, 21898385018, 22515240934, 62220261623, 124440523246, 142339502617, 146349066071, 284679005234, 292698132142, 799291053157, 1598582106314, 10390783691041, 20781567382082]

約数ペア:

[(1, 20781567382082), (2, 10390783691041), (13, 1598582106314), (26, 799291053157), (71, 292698132142), (73, 284679005234), (142, 146349066071), (146, 142339502617), (167, 124440523246), (334, 62220261623), (923, 22515240934), (949, 21898385018), (1846, 11257620467), (1898, 10949192509), (2171, 9572347942), (4342, 4786173971), (5183, 4009563454), (10366, 2004781727), (11857, 1752683426), (12191, 1704664702), (23714, 876341713), (24382, 852332351), (67379, 308427958), (134758, 154213979), (154141, 134821802), (158483, 131128054), (308282, 67410901), (316966, 65564027), (865561, 24009362), (923437, 22504586), (1731122, 12004681), (1846874, 11252293)]