77718280

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{5209}}^1$

素因数の和:5593

約数の個数: 32

約数和(自身を含む): 175368600

約数和(自身を除く): 97650320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1492, 1865, 2984, 3730, 5209, 7460, 10418, 14920, 20836, 26045, 41672, 52090, 104180, 208360, 1942957, 3885914, 7771828, 9714785, 15543656, 19429570, 38859140, 77718280]

約数ペア:

[(1, 77718280), (2, 38859140), (4, 19429570), (5, 15543656), (8, 9714785), (10, 7771828), (20, 3885914), (40, 1942957), (373, 208360), (746, 104180), (1492, 52090), (1865, 41672), (2984, 26045), (3730, 20836), (5209, 14920), (7460, 10418)]