2490080

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 5987520

約数和(自身を除く): 3497440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 197, 316, 394, 395, 632, 788, 790, 985, 1264, 1576, 1580, 1970, 2528, 3152, 3160, 3940, 6304, 6320, 7880, 12640, 15563, 15760, 31126, 31520, 62252, 77815, 124504, 155630, 249008, 311260, 498016, 622520, 1245040, 2490080]

約数ペア:

[(1, 2490080), (2, 1245040), (4, 622520), (5, 498016), (8, 311260), (10, 249008), (16, 155630), (20, 124504), (32, 77815), (40, 62252), (79, 31520), (80, 31126), (158, 15760), (160, 15563), (197, 12640), (316, 7880), (394, 6320), (395, 6304), (632, 3940), (788, 3160), (790, 3152), (985, 2528), (1264, 1970), (1576, 1580)]