128816388

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{997}}^1$

素因数の和:1141

約数の個数: 72

約数和(自身を含む): 338206232

約数和(自身を除く): 209389844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 97, 111, 148, 194, 222, 291, 333, 388, 444, 582, 666, 873, 997, 1164, 1332, 1746, 1994, 2991, 3492, 3589, 3988, 5982, 7178, 8973, 10767, 11964, 14356, 17946, 21534, 32301, 35892, 36889, 43068, 64602, 73778, 96709, 110667, 129204, 147556, 193418, 221334, 290127, 332001, 386836, 442668, 580254, 664002, 870381, 1160508, 1328004, 1740762, 3481524, 3578233, 7156466, 10734699, 14312932, 21469398, 32204097, 42938796, 64408194, 128816388]

約数ペア:

[(1, 128816388), (2, 64408194), (3, 42938796), (4, 32204097), (6, 21469398), (9, 14312932), (12, 10734699), (18, 7156466), (36, 3578233), (37, 3481524), (74, 1740762), (97, 1328004), (111, 1160508), (148, 870381), (194, 664002), (222, 580254), (291, 442668), (333, 386836), (388, 332001), (444, 290127), (582, 221334), (666, 193418), (873, 147556), (997, 129204), (1164, 110667), (1332, 96709), (1746, 73778), (1994, 64602), (2991, 43068), (3492, 36889), (3589, 35892), (3988, 32301), (5982, 21534), (7178, 17946), (8973, 14356), (10767, 11964)]