28879890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74051}}^1$

素因数の和:74074

約数の個数: 32

約数和(自身を含む): 74644416

約数和(自身を除く): 45764526

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 74051, 148102, 222153, 370255, 444306, 740510, 962663, 1110765, 1925326, 2221530, 2887989, 4813315, 5775978, 9626630, 14439945, 28879890]

約数ペア:

[(1, 28879890), (2, 14439945), (3, 9626630), (5, 5775978), (6, 4813315), (10, 2887989), (13, 2221530), (15, 1925326), (26, 1110765), (30, 962663), (39, 740510), (65, 444306), (78, 370255), (130, 222153), (195, 148102), (390, 74051)]