20785008

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:382

約数の個数: 80

約数和(自身を含む): 57067776

約数和(自身を除く): 36282768

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 67, 69, 92, 134, 138, 184, 201, 268, 276, 281, 368, 402, 536, 552, 562, 804, 843, 1072, 1104, 1124, 1541, 1608, 1686, 2248, 3082, 3216, 3372, 4496, 4623, 6164, 6463, 6744, 9246, 12328, 12926, 13488, 18492, 18827, 19389, 24656, 25852, 36984, 37654, 38778, 51704, 56481, 73968, 75308, 77556, 103408, 112962, 150616, 155112, 225924, 301232, 310224, 433021, 451848, 866042, 903696, 1299063, 1732084, 2598126, 3464168, 5196252, 6928336, 10392504, 20785008]

約数ペア:

[(1, 20785008), (2, 10392504), (3, 6928336), (4, 5196252), (6, 3464168), (8, 2598126), (12, 1732084), (16, 1299063), (23, 903696), (24, 866042), (46, 451848), (48, 433021), (67, 310224), (69, 301232), (92, 225924), (134, 155112), (138, 150616), (184, 112962), (201, 103408), (268, 77556), (276, 75308), (281, 73968), (368, 56481), (402, 51704), (536, 38778), (552, 37654), (562, 36984), (804, 25852), (843, 24656), (1072, 19389), (1104, 18827), (1124, 18492), (1541, 13488), (1608, 12926), (1686, 12328), (2248, 9246), (3082, 6744), (3216, 6463), (3372, 6164), (4496, 4623)]