398786328

素因数分解:

$2^3\times 3^7\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1041

約数の個数: 128

約数和(自身を含む): 1171353600

約数和(自身を除く): 772567272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 54, 69, 72, 81, 92, 108, 138, 162, 184, 207, 216, 243, 276, 324, 414, 486, 552, 621, 648, 729, 828, 972, 991, 1242, 1458, 1656, 1863, 1944, 1982, 2187, 2484, 2916, 2973, 3726, 3964, 4374, 4968, 5589, 5832, 5946, 7452, 7928, 8748, 8919, 11178, 11892, 14904, 16767, 17496, 17838, 22356, 22793, 23784, 26757, 33534, 35676, 44712, 45586, 50301, 53514, 67068, 68379, 71352, 80271, 91172, 100602, 107028, 134136, 136758, 160542, 182344, 201204, 205137, 214056, 240813, 273516, 321084, 402408, 410274, 481626, 547032, 615411, 642168, 722439, 820548, 963252, 1230822, 1444878, 1641096, 1846233, 1926504, 2167317, 2461644, 2889756, 3692466, 4334634, 4923288, 5538699, 5779512, 7384932, 8669268, 11077398, 14769864, 16616097, 17338536, 22154796, 33232194, 44309592, 49848291, 66464388, 99696582, 132928776, 199393164, 398786328]

約数ペア:

[(1, 398786328), (2, 199393164), (3, 132928776), (4, 99696582), (6, 66464388), (8, 49848291), (9, 44309592), (12, 33232194), (18, 22154796), (23, 17338536), (24, 16616097), (27, 14769864), (36, 11077398), (46, 8669268), (54, 7384932), (69, 5779512), (72, 5538699), (81, 4923288), (92, 4334634), (108, 3692466), (138, 2889756), (162, 2461644), (184, 2167317), (207, 1926504), (216, 1846233), (243, 1641096), (276, 1444878), (324, 1230822), (414, 963252), (486, 820548), (552, 722439), (621, 642168), (648, 615411), (729, 547032), (828, 481626), (972, 410274), (991, 402408), (1242, 321084), (1458, 273516), (1656, 240813), (1863, 214056), (1944, 205137), (1982, 201204), (2187, 182344), (2484, 160542), (2916, 136758), (2973, 134136), (3726, 107028), (3964, 100602), (4374, 91172), (4968, 80271), (5589, 71352), (5832, 68379), (5946, 67068), (7452, 53514), (7928, 50301), (8748, 45586), (8919, 44712), (11178, 35676), (11892, 33534), (14904, 26757), (16767, 23784), (17496, 22793), (17838, 22356)]