647681520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{17189}}^1$

素因数の和:17362

約数の個数: 80

約数和(自身を含む): 2020718880

約数和(自身を除く): 1373037360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2355, 2512, 3140, 3768, 4710, 6280, 7536, 9420, 12560, 17189, 18840, 34378, 37680, 51567, 68756, 85945, 103134, 137512, 171890, 206268, 257835, 275024, 343780, 412536, 515670, 687560, 825072, 1031340, 1375120, 2062680, 2698673, 4125360, 5397346, 8096019, 10794692, 13493365, 16192038, 21589384, 26986730, 32384076, 40480095, 43178768, 53973460, 64768152, 80960190, 107946920, 129536304, 161920380, 215893840, 323840760, 647681520]

約数ペア:

[(1, 647681520), (2, 323840760), (3, 215893840), (4, 161920380), (5, 129536304), (6, 107946920), (8, 80960190), (10, 64768152), (12, 53973460), (15, 43178768), (16, 40480095), (20, 32384076), (24, 26986730), (30, 21589384), (40, 16192038), (48, 13493365), (60, 10794692), (80, 8096019), (120, 5397346), (157, 4125360), (240, 2698673), (314, 2062680), (471, 1375120), (628, 1031340), (785, 825072), (942, 687560), (1256, 515670), (1570, 412536), (1884, 343780), (2355, 275024), (2512, 257835), (3140, 206268), (3768, 171890), (4710, 137512), (6280, 103134), (7536, 85945), (9420, 68756), (12560, 51567), (17189, 37680), (18840, 34378)]