2021818880

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:450

約数の個数: 160

約数和(自身を含む): 5152973760

約数和(自身を除く): 3131154880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 197, 211, 256, 304, 320, 380, 394, 422, 512, 608, 640, 760, 788, 844, 985, 1055, 1216, 1280, 1520, 1576, 1688, 1970, 2110, 2432, 2560, 3040, 3152, 3376, 3743, 3940, 4009, 4220, 4864, 6080, 6304, 6752, 7486, 7880, 8018, 8440, 9728, 12160, 12608, 13504, 14972, 15760, 16036, 16880, 18715, 20045, 24320, 25216, 27008, 29944, 31520, 32072, 33760, 37430, 40090, 41567, 48640, 50432, 54016, 59888, 63040, 64144, 67520, 74860, 80180, 83134, 100864, 108032, 119776, 126080, 128288, 135040, 149720, 160360, 166268, 207835, 239552, 252160, 256576, 270080, 299440, 320720, 332536, 415670, 479104, 504320, 513152, 540160, 598880, 641440, 665072, 789773, 831340, 958208, 1026304, 1197760, 1282880, 1330144, 1579546, 1662680, 1916416, 2052608, 2395520, 2565760, 2660288, 3159092, 3325360, 3948865, 4791040, 5131520, 5320576, 6318184, 6650720, 7897730, 9582080, 10263040, 10641152, 12636368, 13301440, 15795460, 21282304, 25272736, 26602880, 31590920, 50545472, 53205760, 63181840, 101090944, 106411520, 126363680, 202181888, 252727360, 404363776, 505454720, 1010909440, 2021818880]

約数ペア:

[(1, 2021818880), (2, 1010909440), (4, 505454720), (5, 404363776), (8, 252727360), (10, 202181888), (16, 126363680), (19, 106411520), (20, 101090944), (32, 63181840), (38, 53205760), (40, 50545472), (64, 31590920), (76, 26602880), (80, 25272736), (95, 21282304), (128, 15795460), (152, 13301440), (160, 12636368), (190, 10641152), (197, 10263040), (211, 9582080), (256, 7897730), (304, 6650720), (320, 6318184), (380, 5320576), (394, 5131520), (422, 4791040), (512, 3948865), (608, 3325360), (640, 3159092), (760, 2660288), (788, 2565760), (844, 2395520), (985, 2052608), (1055, 1916416), (1216, 1662680), (1280, 1579546), (1520, 1330144), (1576, 1282880), (1688, 1197760), (1970, 1026304), (2110, 958208), (2432, 831340), (2560, 789773), (3040, 665072), (3152, 641440), (3376, 598880), (3743, 540160), (3940, 513152), (4009, 504320), (4220, 479104), (4864, 415670), (6080, 332536), (6304, 320720), (6752, 299440), (7486, 270080), (7880, 256576), (8018, 252160), (8440, 239552), (9728, 207835), (12160, 166268), (12608, 160360), (13504, 149720), (14972, 135040), (15760, 128288), (16036, 126080), (16880, 119776), (18715, 108032), (20045, 100864), (24320, 83134), (25216, 80180), (27008, 74860), (29944, 67520), (31520, 64144), (32072, 63040), (33760, 59888), (37430, 54016), (40090, 50432), (41567, 48640)]