18025040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20483}}^1$

素因数の和:20507

約数の個数: 40

約数和(自身を含む): 45720288

約数和(自身を除く): 27695248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20483, 40966, 81932, 102415, 163864, 204830, 225313, 327728, 409660, 450626, 819320, 901252, 1126565, 1638640, 1802504, 2253130, 3605008, 4506260, 9012520, 18025040]

約数ペア:

[(1, 18025040), (2, 9012520), (4, 4506260), (5, 3605008), (8, 2253130), (10, 1802504), (11, 1638640), (16, 1126565), (20, 901252), (22, 819320), (40, 450626), (44, 409660), (55, 327728), (80, 225313), (88, 204830), (110, 163864), (176, 102415), (220, 81932), (440, 40966), (880, 20483)]