81773940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1367}}^1$

素因数の和:2376

約数の個数: 48

約数和(自身を含む): 229364352

約数和(自身を除く): 147590412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 997, 1367, 1994, 2734, 2991, 3988, 4101, 4985, 5468, 5982, 6835, 8202, 9970, 11964, 13670, 14955, 16404, 19940, 20505, 27340, 29910, 41010, 59820, 82020, 1362899, 2725798, 4088697, 5451596, 6814495, 8177394, 13628990, 16354788, 20443485, 27257980, 40886970, 81773940]

約数ペア:

[(1, 81773940), (2, 40886970), (3, 27257980), (4, 20443485), (5, 16354788), (6, 13628990), (10, 8177394), (12, 6814495), (15, 5451596), (20, 4088697), (30, 2725798), (60, 1362899), (997, 82020), (1367, 59820), (1994, 41010), (2734, 29910), (2991, 27340), (3988, 20505), (4101, 19940), (4985, 16404), (5468, 14955), (5982, 13670), (6835, 11964), (8202, 9970)]