177777480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 551992320

約数和(自身を除く): 374214840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 131, 172, 215, 258, 262, 263, 344, 393, 430, 516, 524, 526, 645, 655, 786, 789, 860, 1032, 1048, 1052, 1290, 1310, 1315, 1572, 1578, 1720, 1965, 2104, 2580, 2620, 2630, 3144, 3156, 3930, 3945, 5160, 5240, 5260, 5633, 6312, 7860, 7890, 10520, 11266, 11309, 15720, 15780, 16899, 22532, 22618, 28165, 31560, 33798, 33927, 34453, 45064, 45236, 56330, 56545, 67596, 67854, 68906, 84495, 90472, 103359, 112660, 113090, 135192, 135708, 137812, 168990, 169635, 172265, 206718, 225320, 226180, 271416, 275624, 337980, 339270, 344530, 413436, 452360, 516795, 675960, 678540, 689060, 826872, 1033590, 1357080, 1378120, 1481479, 2067180, 2962958, 4134360, 4444437, 5925916, 7407395, 8888874, 11851832, 14814790, 17777748, 22222185, 29629580, 35555496, 44444370, 59259160, 88888740, 177777480]

約数ペア:

[(1, 177777480), (2, 88888740), (3, 59259160), (4, 44444370), (5, 35555496), (6, 29629580), (8, 22222185), (10, 17777748), (12, 14814790), (15, 11851832), (20, 8888874), (24, 7407395), (30, 5925916), (40, 4444437), (43, 4134360), (60, 2962958), (86, 2067180), (120, 1481479), (129, 1378120), (131, 1357080), (172, 1033590), (215, 826872), (258, 689060), (262, 678540), (263, 675960), (344, 516795), (393, 452360), (430, 413436), (516, 344530), (524, 339270), (526, 337980), (645, 275624), (655, 271416), (786, 226180), (789, 225320), (860, 206718), (1032, 172265), (1048, 169635), (1052, 168990), (1290, 137812), (1310, 135708), (1315, 135192), (1572, 113090), (1578, 112660), (1720, 103359), (1965, 90472), (2104, 84495), (2580, 68906), (2620, 67854), (2630, 67596), (3144, 56545), (3156, 56330), (3930, 45236), (3945, 45064), (5160, 34453), (5240, 33927), (5260, 33798), (5633, 31560), (6312, 28165), (7860, 22618), (7890, 22532), (10520, 16899), (11266, 15780), (11309, 15720)]