18446920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20051}}^1$

素因数の和:20085

約数の個数: 32

約数和(自身を含む): 43312320

約数和(自身を除く): 24865400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20051, 40102, 80204, 100255, 160408, 200510, 401020, 461173, 802040, 922346, 1844692, 2305865, 3689384, 4611730, 9223460, 18446920]

約数ペア:

[(1, 18446920), (2, 9223460), (4, 4611730), (5, 3689384), (8, 2305865), (10, 1844692), (20, 922346), (23, 802040), (40, 461173), (46, 401020), (92, 200510), (115, 160408), (184, 100255), (230, 80204), (460, 40102), (920, 20051)]