1991993154

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{919}}^1$

素因数の和:1199

約数の個数: 64

約数和(自身を含む): 4228761600

約数和(自身を除く): 2236768446

約数列:

[1, 2, 3, 6, 23, 46, 69, 113, 138, 139, 226, 278, 339, 417, 678, 834, 919, 1838, 2599, 2757, 3197, 5198, 5514, 6394, 7797, 9591, 15594, 15707, 19182, 21137, 31414, 42274, 47121, 63411, 94242, 103847, 126822, 127741, 207694, 255482, 311541, 361261, 383223, 623082, 722522, 766446, 1083783, 2167566, 2388481, 2938043, 4776962, 5876086, 7165443, 8814129, 14330886, 14434733, 17628258, 28869466, 43304199, 86608398, 331998859, 663997718, 995996577, 1991993154]

約数ペア:

[(1, 1991993154), (2, 995996577), (3, 663997718), (6, 331998859), (23, 86608398), (46, 43304199), (69, 28869466), (113, 17628258), (138, 14434733), (139, 14330886), (226, 8814129), (278, 7165443), (339, 5876086), (417, 4776962), (678, 2938043), (834, 2388481), (919, 2167566), (1838, 1083783), (2599, 766446), (2757, 722522), (3197, 623082), (5198, 383223), (5514, 361261), (6394, 311541), (7797, 255482), (9591, 207694), (15594, 127741), (15707, 126822), (19182, 103847), (21137, 94242), (31414, 63411), (42274, 47121)]