28865390

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 53537760

約数和(自身を除く): 24672370

約数列:

[1, 2, 5, 10, 53, 106, 107, 214, 265, 509, 530, 535, 1018, 1070, 2545, 5090, 5671, 11342, 26977, 28355, 53954, 54463, 56710, 108926, 134885, 269770, 272315, 544630, 2886539, 5773078, 14432695, 28865390]

約数ペア:

[(1, 28865390), (2, 14432695), (5, 5773078), (10, 2886539), (53, 544630), (106, 272315), (107, 269770), (214, 134885), (265, 108926), (509, 56710), (530, 54463), (535, 53954), (1018, 28355), (1070, 26977), (2545, 11342), (5090, 5671)]