646650240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2423}}^1$

素因数の和:2584

約数の個数: 128

約数和(自身を含む): 2076883200

約数和(自身を除く): 1430232960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 139, 160, 192, 240, 278, 320, 384, 417, 480, 556, 640, 695, 834, 960, 1112, 1390, 1668, 1920, 2085, 2224, 2423, 2780, 3336, 4170, 4448, 4846, 5560, 6672, 7269, 8340, 8896, 9692, 11120, 12115, 13344, 14538, 16680, 17792, 19384, 22240, 24230, 26688, 29076, 33360, 36345, 38768, 44480, 48460, 53376, 58152, 66720, 72690, 77536, 88960, 96920, 116304, 133440, 145380, 155072, 193840, 232608, 266880, 290760, 310144, 336797, 387680, 465216, 581520, 673594, 775360, 930432, 1010391, 1163040, 1347188, 1550720, 1683985, 2020782, 2326080, 2694376, 3367970, 4041564, 4652160, 5051955, 5388752, 6735940, 8083128, 10103910, 10777504, 13471880, 16166256, 20207820, 21555008, 26943760, 32332512, 40415640, 43110016, 53887520, 64665024, 80831280, 107775040, 129330048, 161662560, 215550080, 323325120, 646650240]

約数ペア:

[(1, 646650240), (2, 323325120), (3, 215550080), (4, 161662560), (5, 129330048), (6, 107775040), (8, 80831280), (10, 64665024), (12, 53887520), (15, 43110016), (16, 40415640), (20, 32332512), (24, 26943760), (30, 21555008), (32, 20207820), (40, 16166256), (48, 13471880), (60, 10777504), (64, 10103910), (80, 8083128), (96, 6735940), (120, 5388752), (128, 5051955), (139, 4652160), (160, 4041564), (192, 3367970), (240, 2694376), (278, 2326080), (320, 2020782), (384, 1683985), (417, 1550720), (480, 1347188), (556, 1163040), (640, 1010391), (695, 930432), (834, 775360), (960, 673594), (1112, 581520), (1390, 465216), (1668, 387680), (1920, 336797), (2085, 310144), (2224, 290760), (2423, 266880), (2780, 232608), (3336, 193840), (4170, 155072), (4448, 145380), (4846, 133440), (5560, 116304), (6672, 96920), (7269, 88960), (8340, 77536), (8896, 72690), (9692, 66720), (11120, 58152), (12115, 53376), (13344, 48460), (14538, 44480), (16680, 38768), (17792, 36345), (19384, 33360), (22240, 29076), (24230, 26688)]