638694550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1093}}^1$

素因数の和:1178

約数の個数: 96

約数和(自身を含む): 1367412480

約数和(自身を除く): 728717930

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 31, 50, 58, 62, 65, 130, 145, 155, 290, 310, 325, 377, 403, 650, 725, 754, 775, 806, 899, 1093, 1450, 1550, 1798, 1885, 2015, 2186, 3770, 4030, 4495, 5465, 8990, 9425, 10075, 10930, 11687, 14209, 18850, 20150, 22475, 23374, 27325, 28418, 31697, 33883, 44950, 54650, 58435, 63394, 67766, 71045, 116870, 142090, 158485, 169415, 292175, 316970, 338830, 355225, 412061, 440479, 584350, 710450, 792425, 824122, 847075, 880958, 982607, 1584850, 1694150, 1965214, 2060305, 2202395, 4120610, 4404790, 4913035, 9826070, 10301525, 11011975, 12773891, 20603050, 22023950, 24565175, 25547782, 49130350, 63869455, 127738910, 319347275, 638694550]

約数ペア:

[(1, 638694550), (2, 319347275), (5, 127738910), (10, 63869455), (13, 49130350), (25, 25547782), (26, 24565175), (29, 22023950), (31, 20603050), (50, 12773891), (58, 11011975), (62, 10301525), (65, 9826070), (130, 4913035), (145, 4404790), (155, 4120610), (290, 2202395), (310, 2060305), (325, 1965214), (377, 1694150), (403, 1584850), (650, 982607), (725, 880958), (754, 847075), (775, 824122), (806, 792425), (899, 710450), (1093, 584350), (1450, 440479), (1550, 412061), (1798, 355225), (1885, 338830), (2015, 316970), (2186, 292175), (3770, 169415), (4030, 158485), (4495, 142090), (5465, 116870), (8990, 71045), (9425, 67766), (10075, 63394), (10930, 58435), (11687, 54650), (14209, 44950), (18850, 33883), (20150, 31697), (22475, 28418), (23374, 27325)]