19716780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{881}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 55417824

約数和(自身を除く): 35701044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 373, 746, 881, 1119, 1492, 1762, 1865, 2238, 2643, 3524, 3730, 4405, 4476, 5286, 5595, 7460, 8810, 10572, 11190, 13215, 17620, 22380, 26430, 52860, 328613, 657226, 985839, 1314452, 1643065, 1971678, 3286130, 3943356, 4929195, 6572260, 9858390, 19716780]

約数ペア:

[(1, 19716780), (2, 9858390), (3, 6572260), (4, 4929195), (5, 3943356), (6, 3286130), (10, 1971678), (12, 1643065), (15, 1314452), (20, 985839), (30, 657226), (60, 328613), (373, 52860), (746, 26430), (881, 22380), (1119, 17620), (1492, 13215), (1762, 11190), (1865, 10572), (2238, 8810), (2643, 7460), (3524, 5595), (3730, 5286), (4405, 4476)]