20269725040

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1\times {\mathrm{5507}}^1$

素因数の和:5990

約数の個数: 80

約数和(自身を含む): 47618202240

約数和(自身を除く): 27348477200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 331, 556, 662, 695, 1112, 1324, 1390, 1655, 2224, 2648, 2780, 3310, 5296, 5507, 5560, 6620, 11014, 11120, 13240, 22028, 26480, 27535, 44056, 46009, 55070, 88112, 92018, 110140, 184036, 220280, 230045, 368072, 440560, 460090, 736144, 765473, 920180, 1530946, 1822817, 1840360, 3061892, 3645634, 3680720, 3827365, 6123784, 7291268, 7654730, 9114085, 12247568, 14582536, 15309460, 18228170, 29165072, 30618920, 36456340, 61237840, 72912680, 145825360, 253371563, 506743126, 1013486252, 1266857815, 2026972504, 2533715630, 4053945008, 5067431260, 10134862520, 20269725040]

約数ペア:

[(1, 20269725040), (2, 10134862520), (4, 5067431260), (5, 4053945008), (8, 2533715630), (10, 2026972504), (16, 1266857815), (20, 1013486252), (40, 506743126), (80, 253371563), (139, 145825360), (278, 72912680), (331, 61237840), (556, 36456340), (662, 30618920), (695, 29165072), (1112, 18228170), (1324, 15309460), (1390, 14582536), (1655, 12247568), (2224, 9114085), (2648, 7654730), (2780, 7291268), (3310, 6123784), (5296, 3827365), (5507, 3680720), (5560, 3645634), (6620, 3061892), (11014, 1840360), (11120, 1822817), (13240, 1530946), (22028, 920180), (26480, 765473), (27535, 736144), (44056, 460090), (46009, 440560), (55070, 368072), (88112, 230045), (92018, 220280), (110140, 184036)]