561171920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5519}}^1$

素因数の和:5604

約数の個数: 80

約数和(自身を含む): 1379911680

約数和(自身を除く): 818739760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 1240, 1271, 1640, 2480, 2542, 3280, 5084, 5519, 6355, 10168, 11038, 12710, 20336, 22076, 25420, 27595, 44152, 50840, 55190, 88304, 101680, 110380, 171089, 220760, 226279, 342178, 441520, 452558, 684356, 855445, 905116, 1131395, 1368712, 1710890, 1810232, 2262790, 2737424, 3421780, 3620464, 4525580, 6843560, 7014649, 9051160, 13687120, 14029298, 18102320, 28058596, 35073245, 56117192, 70146490, 112234384, 140292980, 280585960, 561171920]

約数ペア:

[(1, 561171920), (2, 280585960), (4, 140292980), (5, 112234384), (8, 70146490), (10, 56117192), (16, 35073245), (20, 28058596), (31, 18102320), (40, 14029298), (41, 13687120), (62, 9051160), (80, 7014649), (82, 6843560), (124, 4525580), (155, 3620464), (164, 3421780), (205, 2737424), (248, 2262790), (310, 1810232), (328, 1710890), (410, 1368712), (496, 1131395), (620, 905116), (656, 855445), (820, 684356), (1240, 452558), (1271, 441520), (1640, 342178), (2480, 226279), (2542, 220760), (3280, 171089), (5084, 110380), (5519, 101680), (6355, 88304), (10168, 55190), (11038, 50840), (12710, 44152), (20336, 27595), (22076, 25420)]