28780912

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:625

約数の個数: 40

約数和(自身を含む): 58630176

約数和(自身を除く): 29849264

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 197, 368, 394, 397, 788, 794, 1576, 1588, 3152, 3176, 4531, 6352, 9062, 9131, 18124, 18262, 36248, 36524, 72496, 73048, 78209, 146096, 156418, 312836, 625672, 1251344, 1798807, 3597614, 7195228, 14390456, 28780912]

約数ペア:

[(1, 28780912), (2, 14390456), (4, 7195228), (8, 3597614), (16, 1798807), (23, 1251344), (46, 625672), (92, 312836), (184, 156418), (197, 146096), (368, 78209), (394, 73048), (397, 72496), (788, 36524), (794, 36248), (1576, 18262), (1588, 18124), (3152, 9131), (3176, 9062), (4531, 6352)]