180387320

素因数分解:

$2^3\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{3461}}^1$

素因数の和:4775

約数の個数: 32

約数和(自身を含む): 406300320

約数和(自身を除く): 225913000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1303, 2606, 3461, 5212, 6515, 6922, 10424, 13030, 13844, 17305, 26060, 27688, 34610, 52120, 69220, 138440, 4509683, 9019366, 18038732, 22548415, 36077464, 45096830, 90193660, 180387320]

約数ペア:

[(1, 180387320), (2, 90193660), (4, 45096830), (5, 36077464), (8, 22548415), (10, 18038732), (20, 9019366), (40, 4509683), (1303, 138440), (2606, 69220), (3461, 52120), (5212, 34610), (6515, 27688), (6922, 26060), (10424, 17305), (13030, 13844)]