656812520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9497}}^1$

素因数の和:9547

約数の個数: 128

約数和(自身を含む): 1914796800

約数和(自身を除く): 1257984280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 280, 364, 380, 455, 494, 520, 532, 665, 728, 760, 910, 988, 1064, 1235, 1330, 1729, 1820, 1976, 2470, 2660, 3458, 3640, 4940, 5320, 6916, 8645, 9497, 9880, 13832, 17290, 18994, 34580, 37988, 47485, 66479, 69160, 75976, 94970, 123461, 132958, 180443, 189940, 246922, 265916, 332395, 360886, 379880, 493844, 531832, 617305, 664790, 721772, 864227, 902215, 987688, 1234610, 1263101, 1329580, 1443544, 1728454, 1804430, 2345759, 2469220, 2526202, 2659160, 3456908, 3608860, 4321135, 4691518, 4938440, 5052404, 6315505, 6913816, 7217720, 8642270, 9383036, 10104808, 11728795, 12631010, 16420313, 17284540, 18766072, 23457590, 25262020, 32840626, 34569080, 46915180, 50524040, 65681252, 82101565, 93830360, 131362504, 164203130, 328406260, 656812520]

約数ペア:

[(1, 656812520), (2, 328406260), (4, 164203130), (5, 131362504), (7, 93830360), (8, 82101565), (10, 65681252), (13, 50524040), (14, 46915180), (19, 34569080), (20, 32840626), (26, 25262020), (28, 23457590), (35, 18766072), (38, 17284540), (40, 16420313), (52, 12631010), (56, 11728795), (65, 10104808), (70, 9383036), (76, 8642270), (91, 7217720), (95, 6913816), (104, 6315505), (130, 5052404), (133, 4938440), (140, 4691518), (152, 4321135), (182, 3608860), (190, 3456908), (247, 2659160), (260, 2526202), (266, 2469220), (280, 2345759), (364, 1804430), (380, 1728454), (455, 1443544), (494, 1329580), (520, 1263101), (532, 1234610), (665, 987688), (728, 902215), (760, 864227), (910, 721772), (988, 664790), (1064, 617305), (1235, 531832), (1330, 493844), (1729, 379880), (1820, 360886), (1976, 332395), (2470, 265916), (2660, 246922), (3458, 189940), (3640, 180443), (4940, 132958), (5320, 123461), (6916, 94970), (8645, 75976), (9497, 69160), (9880, 66479), (13832, 47485), (17290, 37988), (18994, 34580)]