28237900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{9109}}^1$

素因数の和:9154

約数の個数: 36

約数和(自身を含む): 63259840

約数和(自身を除く): 35021940

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 9109, 18218, 36436, 45545, 91090, 182180, 227725, 282379, 455450, 564758, 910900, 1129516, 1411895, 2823790, 5647580, 7059475, 14118950, 28237900]

約数ペア:

[(1, 28237900), (2, 14118950), (4, 7059475), (5, 5647580), (10, 2823790), (20, 1411895), (25, 1129516), (31, 910900), (50, 564758), (62, 455450), (100, 282379), (124, 227725), (155, 182180), (310, 91090), (620, 45545), (775, 36436), (1550, 18218), (3100, 9109)]