19749420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 63179424

約数和(自身を除く): 43430004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 73, 81, 90, 108, 135, 146, 162, 167, 180, 219, 270, 292, 324, 334, 365, 405, 438, 501, 540, 657, 668, 730, 810, 835, 876, 1002, 1095, 1314, 1460, 1503, 1620, 1670, 1971, 2004, 2190, 2505, 2628, 3006, 3285, 3340, 3942, 4380, 4509, 5010, 5913, 6012, 6570, 7515, 7884, 9018, 9855, 10020, 11826, 12191, 13140, 13527, 15030, 18036, 19710, 22545, 23652, 24382, 27054, 29565, 30060, 36573, 39420, 45090, 48764, 54108, 59130, 60955, 67635, 73146, 90180, 109719, 118260, 121910, 135270, 146292, 182865, 219438, 243820, 270540, 329157, 365730, 438876, 548595, 658314, 731460, 987471, 1097190, 1316628, 1645785, 1974942, 2194380, 3291570, 3949884, 4937355, 6583140, 9874710, 19749420]

約数ペア:

[(1, 19749420), (2, 9874710), (3, 6583140), (4, 4937355), (5, 3949884), (6, 3291570), (9, 2194380), (10, 1974942), (12, 1645785), (15, 1316628), (18, 1097190), (20, 987471), (27, 731460), (30, 658314), (36, 548595), (45, 438876), (54, 365730), (60, 329157), (73, 270540), (81, 243820), (90, 219438), (108, 182865), (135, 146292), (146, 135270), (162, 121910), (167, 118260), (180, 109719), (219, 90180), (270, 73146), (292, 67635), (324, 60955), (334, 59130), (365, 54108), (405, 48764), (438, 45090), (501, 39420), (540, 36573), (657, 30060), (668, 29565), (730, 27054), (810, 24382), (835, 23652), (876, 22545), (1002, 19710), (1095, 18036), (1314, 15030), (1460, 13527), (1503, 13140), (1620, 12191), (1670, 11826), (1971, 10020), (2004, 9855), (2190, 9018), (2505, 7884), (2628, 7515), (3006, 6570), (3285, 6012), (3340, 5913), (3942, 5010), (4380, 4509)]