28947080

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{8719}}^1$

素因数の和:8813

約数の個数: 32

約数和(自身を含む): 65923200

約数和(自身を除く): 36976120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 8719, 17438, 34876, 43595, 69752, 87190, 174380, 348760, 723677, 1447354, 2894708, 3618385, 5789416, 7236770, 14473540, 28947080]

約数ペア:

[(1, 28947080), (2, 14473540), (4, 7236770), (5, 5789416), (8, 3618385), (10, 2894708), (20, 1447354), (40, 723677), (83, 348760), (166, 174380), (332, 87190), (415, 69752), (664, 43595), (830, 34876), (1660, 17438), (3320, 8719)]