2017779820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{223}}^1\times {\mathrm{1319}}^1$

素因数の和:1572

約数の個数: 96

約数和(自身を含む): 4967424000

約数和(自身を除く): 2949644180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 223, 245, 343, 446, 490, 686, 892, 980, 1115, 1319, 1372, 1561, 1715, 2230, 2638, 3122, 3430, 4460, 5276, 6244, 6595, 6860, 7805, 9233, 10927, 13190, 15610, 18466, 21854, 26380, 31220, 36932, 43708, 46165, 54635, 64631, 76489, 92330, 109270, 129262, 152978, 184660, 218540, 258524, 294137, 305956, 323155, 382445, 452417, 588274, 646310, 764890, 904834, 1176548, 1292620, 1470685, 1529780, 1809668, 2058959, 2262085, 2941370, 4117918, 4524170, 5882740, 8235836, 9048340, 10294795, 14412713, 20589590, 28825426, 41179180, 57650852, 72063565, 100888991, 144127130, 201777982, 288254260, 403555964, 504444955, 1008889910, 2017779820]

約数ペア:

[(1, 2017779820), (2, 1008889910), (4, 504444955), (5, 403555964), (7, 288254260), (10, 201777982), (14, 144127130), (20, 100888991), (28, 72063565), (35, 57650852), (49, 41179180), (70, 28825426), (98, 20589590), (140, 14412713), (196, 10294795), (223, 9048340), (245, 8235836), (343, 5882740), (446, 4524170), (490, 4117918), (686, 2941370), (892, 2262085), (980, 2058959), (1115, 1809668), (1319, 1529780), (1372, 1470685), (1561, 1292620), (1715, 1176548), (2230, 904834), (2638, 764890), (3122, 646310), (3430, 588274), (4460, 452417), (5276, 382445), (6244, 323155), (6595, 305956), (6860, 294137), (7805, 258524), (9233, 218540), (10927, 184660), (13190, 152978), (15610, 129262), (18466, 109270), (21854, 92330), (26380, 76489), (31220, 64631), (36932, 54635), (43708, 46165)]