176338640

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 420723072

約数和(自身を除く): 244384432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 167, 197, 268, 334, 335, 394, 536, 668, 670, 788, 835, 985, 1072, 1336, 1340, 1576, 1670, 1970, 2672, 2680, 3152, 3340, 3940, 5360, 6680, 7880, 11189, 13199, 13360, 15760, 22378, 26398, 32899, 44756, 52796, 55945, 65798, 65995, 89512, 105592, 111890, 131596, 131990, 164495, 179024, 211184, 223780, 263192, 263980, 328990, 447560, 526384, 527960, 657980, 895120, 1055920, 1315960, 2204233, 2631920, 4408466, 8816932, 11021165, 17633864, 22042330, 35267728, 44084660, 88169320, 176338640]

約数ペア:

[(1, 176338640), (2, 88169320), (4, 44084660), (5, 35267728), (8, 22042330), (10, 17633864), (16, 11021165), (20, 8816932), (40, 4408466), (67, 2631920), (80, 2204233), (134, 1315960), (167, 1055920), (197, 895120), (268, 657980), (334, 527960), (335, 526384), (394, 447560), (536, 328990), (668, 263980), (670, 263192), (788, 223780), (835, 211184), (985, 179024), (1072, 164495), (1336, 131990), (1340, 131596), (1576, 111890), (1670, 105592), (1970, 89512), (2672, 65995), (2680, 65798), (3152, 55945), (3340, 52796), (3940, 44756), (5360, 32899), (6680, 26398), (7880, 22378), (11189, 15760), (13199, 13360)]