720653580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{20323}}^1$

素因数の和:20535

約数の個数: 72

約数和(自身を含む): 2197186992

約数和(自身を除く): 1476533412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1970, 2364, 2955, 3546, 3940, 5910, 7092, 8865, 11820, 17730, 20323, 35460, 40646, 60969, 81292, 101615, 121938, 182907, 203230, 243876, 304845, 365814, 406460, 609690, 731628, 914535, 1219380, 1829070, 3658140, 4003631, 8007262, 12010893, 16014524, 20018155, 24021786, 36032679, 40036310, 48043572, 60054465, 72065358, 80072620, 120108930, 144130716, 180163395, 240217860, 360326790, 720653580]

約数ペア:

[(1, 720653580), (2, 360326790), (3, 240217860), (4, 180163395), (5, 144130716), (6, 120108930), (9, 80072620), (10, 72065358), (12, 60054465), (15, 48043572), (18, 40036310), (20, 36032679), (30, 24021786), (36, 20018155), (45, 16014524), (60, 12010893), (90, 8007262), (180, 4003631), (197, 3658140), (394, 1829070), (591, 1219380), (788, 914535), (985, 731628), (1182, 609690), (1773, 406460), (1970, 365814), (2364, 304845), (2955, 243876), (3546, 203230), (3940, 182907), (5910, 121938), (7092, 101615), (8865, 81292), (11820, 60969), (17730, 40646), (20323, 35460)]