72989320

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{2003}}^1$

素因数の和:2925

約数の個数: 32

約数和(自身を含む): 164488320

約数和(自身を除く): 91499000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 2003, 3644, 4006, 4555, 7288, 8012, 9110, 10015, 16024, 18220, 20030, 36440, 40060, 80120, 1824733, 3649466, 7298932, 9123665, 14597864, 18247330, 36494660, 72989320]

約数ペア:

[(1, 72989320), (2, 36494660), (4, 18247330), (5, 14597864), (8, 9123665), (10, 7298932), (20, 3649466), (40, 1824733), (911, 80120), (1822, 40060), (2003, 36440), (3644, 20030), (4006, 18220), (4555, 16024), (7288, 10015), (8012, 9110)]