28131280

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4817}}^1$

素因数の和:4903

約数の個数: 40

約数和(自身を含む): 66314952

約数和(自身を除く): 38183672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 4817, 5840, 9634, 19268, 24085, 38536, 48170, 77072, 96340, 192680, 351641, 385360, 703282, 1406564, 1758205, 2813128, 3516410, 5626256, 7032820, 14065640, 28131280]

約数ペア:

[(1, 28131280), (2, 14065640), (4, 7032820), (5, 5626256), (8, 3516410), (10, 2813128), (16, 1758205), (20, 1406564), (40, 703282), (73, 385360), (80, 351641), (146, 192680), (292, 96340), (365, 77072), (584, 48170), (730, 38536), (1168, 24085), (1460, 19268), (2920, 9634), (4817, 5840)]