218378440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:359

約数の個数: 128

約数和(自身を含む): 585066240

約数和(自身を除く): 366687800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 107, 140, 148, 185, 197, 214, 259, 280, 296, 370, 394, 428, 518, 535, 740, 749, 788, 856, 985, 1036, 1070, 1295, 1379, 1480, 1498, 1576, 1970, 2072, 2140, 2590, 2758, 2996, 3745, 3940, 3959, 4280, 5180, 5516, 5992, 6895, 7289, 7490, 7880, 7918, 10360, 11032, 13790, 14578, 14980, 15836, 19795, 21079, 27580, 27713, 29156, 29960, 31672, 36445, 39590, 42158, 51023, 55160, 55426, 58312, 72890, 79180, 84316, 102046, 105395, 110852, 138565, 145780, 147553, 158360, 168632, 204092, 210790, 221704, 255115, 277130, 291560, 295106, 408184, 421580, 510230, 554260, 590212, 737765, 779923, 843160, 1020460, 1108520, 1180424, 1475530, 1559846, 2040920, 2951060, 3119692, 3899615, 5459461, 5902120, 6239384, 7799230, 10918922, 15598460, 21837844, 27297305, 31196920, 43675688, 54594610, 109189220, 218378440]

約数ペア:

[(1, 218378440), (2, 109189220), (4, 54594610), (5, 43675688), (7, 31196920), (8, 27297305), (10, 21837844), (14, 15598460), (20, 10918922), (28, 7799230), (35, 6239384), (37, 5902120), (40, 5459461), (56, 3899615), (70, 3119692), (74, 2951060), (107, 2040920), (140, 1559846), (148, 1475530), (185, 1180424), (197, 1108520), (214, 1020460), (259, 843160), (280, 779923), (296, 737765), (370, 590212), (394, 554260), (428, 510230), (518, 421580), (535, 408184), (740, 295106), (749, 291560), (788, 277130), (856, 255115), (985, 221704), (1036, 210790), (1070, 204092), (1295, 168632), (1379, 158360), (1480, 147553), (1498, 145780), (1576, 138565), (1970, 110852), (2072, 105395), (2140, 102046), (2590, 84316), (2758, 79180), (2996, 72890), (3745, 58312), (3940, 55426), (3959, 55160), (4280, 51023), (5180, 42158), (5516, 39590), (5992, 36445), (6895, 31672), (7289, 29960), (7490, 29156), (7880, 27713), (7918, 27580), (10360, 21079), (11032, 19795), (13790, 15836), (14578, 14980)]