20779778864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{431}}^1\times {\mathrm{1201}}^1$

素因数の和:1846

約数の個数: 80

約数和(自身を含む): 43719951744

約数和(自身を除く): 22940172880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 193, 208, 386, 431, 772, 862, 1201, 1544, 1724, 2402, 2509, 3088, 3448, 4804, 5018, 5603, 6896, 9608, 10036, 11206, 15613, 19216, 20072, 22412, 31226, 40144, 44824, 62452, 83183, 89648, 124904, 166366, 231793, 249808, 332732, 463586, 517631, 665464, 927172, 1035262, 1081379, 1330928, 1854344, 2070524, 2162758, 3013309, 3708688, 4141048, 4325516, 6026618, 6729203, 8282096, 8651032, 12053236, 13458406, 17302064, 24106472, 26916812, 48212944, 53833624, 99902783, 107667248, 199805566, 399611132, 799222264, 1298736179, 1598444528, 2597472358, 5194944716, 10389889432, 20779778864]

約数ペア:

[(1, 20779778864), (2, 10389889432), (4, 5194944716), (8, 2597472358), (13, 1598444528), (16, 1298736179), (26, 799222264), (52, 399611132), (104, 199805566), (193, 107667248), (208, 99902783), (386, 53833624), (431, 48212944), (772, 26916812), (862, 24106472), (1201, 17302064), (1544, 13458406), (1724, 12053236), (2402, 8651032), (2509, 8282096), (3088, 6729203), (3448, 6026618), (4804, 4325516), (5018, 4141048), (5603, 3708688), (6896, 3013309), (9608, 2162758), (10036, 2070524), (11206, 1854344), (15613, 1330928), (19216, 1081379), (20072, 1035262), (22412, 927172), (31226, 665464), (40144, 517631), (44824, 463586), (62452, 332732), (83183, 249808), (89648, 231793), (124904, 166366)]