28876250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1777}}^1$

素因数の和:1812

約数の個数: 40

約数和(自身を含む): 58321956

約数和(自身を除く): 29445706

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 1777, 3250, 3554, 8125, 8885, 16250, 17770, 23101, 44425, 46202, 88850, 115505, 222125, 231010, 444250, 577525, 1110625, 1155050, 2221250, 2887625, 5775250, 14438125, 28876250]

約数ペア:

[(1, 28876250), (2, 14438125), (5, 5775250), (10, 2887625), (13, 2221250), (25, 1155050), (26, 1110625), (50, 577525), (65, 444250), (125, 231010), (130, 222125), (250, 115505), (325, 88850), (625, 46202), (650, 44425), (1250, 23101), (1625, 17770), (1777, 16250), (3250, 8885), (3554, 8125)]