21375133040

素因数分解:

$2^4\times 5^1\times {\mathrm{457}}^1\times {\mathrm{584659}}^1$

素因数の和:585129

約数の個数: 40

約数和(自身を含む): 49806016080

約数和(自身を除く): 28430883040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 457, 914, 1828, 2285, 3656, 4570, 7312, 9140, 18280, 36560, 584659, 1169318, 2338636, 2923295, 4677272, 5846590, 9354544, 11693180, 23386360, 46772720, 267189163, 534378326, 1068756652, 1335945815, 2137513304, 2671891630, 4275026608, 5343783260, 10687566520, 21375133040]

約数ペア:

[(1, 21375133040), (2, 10687566520), (4, 5343783260), (5, 4275026608), (8, 2671891630), (10, 2137513304), (16, 1335945815), (20, 1068756652), (40, 534378326), (80, 267189163), (457, 46772720), (914, 23386360), (1828, 11693180), (2285, 9354544), (3656, 5846590), (4570, 4677272), (7312, 2923295), (9140, 2338636), (18280, 1169318), (36560, 584659)]