28259320

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5393}}^1$

素因数の和:5535

約数の個数: 32

約数和(自身を含む): 64080720

約数和(自身を除く): 35821400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5393, 10786, 21572, 26965, 43144, 53930, 107860, 215720, 706483, 1412966, 2825932, 3532415, 5651864, 7064830, 14129660, 28259320]

約数ペア:

[(1, 28259320), (2, 14129660), (4, 7064830), (5, 5651864), (8, 3532415), (10, 2825932), (20, 1412966), (40, 706483), (131, 215720), (262, 107860), (524, 53930), (655, 43144), (1048, 26965), (1310, 21572), (2620, 10786), (5240, 5393)]