28545560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11699}}^1$

素因数の和:11771

約数の個数: 32

約数和(自身を含む): 65286000

約数和(自身を除く): 36740440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11699, 23398, 46796, 58495, 93592, 116990, 233980, 467960, 713639, 1427278, 2854556, 3568195, 5709112, 7136390, 14272780, 28545560]

約数ペア:

[(1, 28545560), (2, 14272780), (4, 7136390), (5, 5709112), (8, 3568195), (10, 2854556), (20, 1427278), (40, 713639), (61, 467960), (122, 233980), (244, 116990), (305, 93592), (488, 58495), (610, 46796), (1220, 23398), (2440, 11699)]