289970860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{1777}}^1$

素因数の和:2026

約数の個数: 48

約数和(自身を含む): 627278400

約数和(自身を除く): 337307540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 199, 205, 398, 410, 796, 820, 995, 1777, 1990, 3554, 3980, 7108, 8159, 8885, 16318, 17770, 32636, 35540, 40795, 72857, 81590, 145714, 163180, 291428, 353623, 364285, 707246, 728570, 1414492, 1457140, 1768115, 3536230, 7072460, 14498543, 28997086, 57994172, 72492715, 144985430, 289970860]

約数ペア:

[(1, 289970860), (2, 144985430), (4, 72492715), (5, 57994172), (10, 28997086), (20, 14498543), (41, 7072460), (82, 3536230), (164, 1768115), (199, 1457140), (205, 1414492), (398, 728570), (410, 707246), (796, 364285), (820, 353623), (995, 291428), (1777, 163180), (1990, 145714), (3554, 81590), (3980, 72857), (7108, 40795), (8159, 35540), (8885, 32636), (16318, 17770)]