18640128

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1867}}^1$

素因数の和:1899

約数の個数: 72

約数和(自身を含む): 53454688

約数和(自身を除く): 34814560

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 624, 768, 832, 1248, 1664, 1867, 2496, 3328, 3734, 4992, 5601, 7468, 9984, 11202, 14936, 22404, 24271, 29872, 44808, 48542, 59744, 72813, 89616, 97084, 119488, 145626, 179232, 194168, 238976, 291252, 358464, 388336, 477952, 582504, 716928, 776672, 1165008, 1433856, 1553344, 2330016, 3106688, 4660032, 6213376, 9320064, 18640128]

約数ペア:

[(1, 18640128), (2, 9320064), (3, 6213376), (4, 4660032), (6, 3106688), (8, 2330016), (12, 1553344), (13, 1433856), (16, 1165008), (24, 776672), (26, 716928), (32, 582504), (39, 477952), (48, 388336), (52, 358464), (64, 291252), (78, 238976), (96, 194168), (104, 179232), (128, 145626), (156, 119488), (192, 97084), (208, 89616), (256, 72813), (312, 59744), (384, 48542), (416, 44808), (624, 29872), (768, 24271), (832, 22404), (1248, 14936), (1664, 11202), (1867, 9984), (2496, 7468), (3328, 5601), (3734, 4992)]