28453990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{641}}^1$

素因数の和:864

約数の個数: 32

約数和(自身を含む): 53804736

約数和(自身を除く): 25350746

約数列:

[1, 2, 5, 10, 23, 46, 115, 193, 230, 386, 641, 965, 1282, 1930, 3205, 4439, 6410, 8878, 14743, 22195, 29486, 44390, 73715, 123713, 147430, 247426, 618565, 1237130, 2845399, 5690798, 14226995, 28453990]

約数ペア:

[(1, 28453990), (2, 14226995), (5, 5690798), (10, 2845399), (23, 1237130), (46, 618565), (115, 247426), (193, 147430), (230, 123713), (386, 73715), (641, 44390), (965, 29486), (1282, 22195), (1930, 14743), (3205, 8878), (4439, 6410)]