86435720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1567}}^1$

素因数の和:1782

約数の個数: 64

約数和(自身を含む): 223534080

約数和(自身を除く): 137098360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 788, 985, 1379, 1567, 1576, 1970, 2758, 3134, 3940, 5516, 6268, 6895, 7835, 7880, 10969, 11032, 12536, 13790, 15670, 21938, 27580, 31340, 43876, 54845, 55160, 62680, 87752, 109690, 219380, 308699, 438760, 617398, 1234796, 1543495, 2160893, 2469592, 3086990, 4321786, 6173980, 8643572, 10804465, 12347960, 17287144, 21608930, 43217860, 86435720]

約数ペア:

[(1, 86435720), (2, 43217860), (4, 21608930), (5, 17287144), (7, 12347960), (8, 10804465), (10, 8643572), (14, 6173980), (20, 4321786), (28, 3086990), (35, 2469592), (40, 2160893), (56, 1543495), (70, 1234796), (140, 617398), (197, 438760), (280, 308699), (394, 219380), (788, 109690), (985, 87752), (1379, 62680), (1567, 55160), (1576, 54845), (1970, 43876), (2758, 31340), (3134, 27580), (3940, 21938), (5516, 15670), (6268, 13790), (6895, 12536), (7835, 11032), (7880, 10969)]