215739520

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:366

約数の個数: 128

約数和(自身を含む): 555206400

約数和(自身を除く): 339466880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 79, 80, 85, 128, 136, 158, 160, 170, 251, 272, 316, 320, 340, 395, 502, 544, 632, 640, 680, 790, 1004, 1088, 1255, 1264, 1343, 1360, 1580, 2008, 2176, 2510, 2528, 2686, 2720, 3160, 4016, 4267, 5020, 5056, 5372, 5440, 6320, 6715, 8032, 8534, 10040, 10112, 10744, 10880, 12640, 13430, 16064, 17068, 19829, 20080, 21335, 21488, 25280, 26860, 32128, 34136, 39658, 40160, 42670, 42976, 50560, 53720, 68272, 79316, 80320, 85340, 85952, 99145, 107440, 136544, 158632, 160640, 170680, 171904, 198290, 214880, 273088, 317264, 337093, 341360, 396580, 429760, 546176, 634528, 674186, 682720, 793160, 859520, 1269056, 1348372, 1365440, 1586320, 1685465, 2538112, 2696744, 2730880, 3172640, 3370930, 5393488, 6345280, 6741860, 10786976, 12690560, 13483720, 21573952, 26967440, 43147904, 53934880, 107869760, 215739520]

約数ペア:

[(1, 215739520), (2, 107869760), (4, 53934880), (5, 43147904), (8, 26967440), (10, 21573952), (16, 13483720), (17, 12690560), (20, 10786976), (32, 6741860), (34, 6345280), (40, 5393488), (64, 3370930), (68, 3172640), (79, 2730880), (80, 2696744), (85, 2538112), (128, 1685465), (136, 1586320), (158, 1365440), (160, 1348372), (170, 1269056), (251, 859520), (272, 793160), (316, 682720), (320, 674186), (340, 634528), (395, 546176), (502, 429760), (544, 396580), (632, 341360), (640, 337093), (680, 317264), (790, 273088), (1004, 214880), (1088, 198290), (1255, 171904), (1264, 170680), (1343, 160640), (1360, 158632), (1580, 136544), (2008, 107440), (2176, 99145), (2510, 85952), (2528, 85340), (2686, 80320), (2720, 79316), (3160, 68272), (4016, 53720), (4267, 50560), (5020, 42976), (5056, 42670), (5372, 40160), (5440, 39658), (6320, 34136), (6715, 32128), (8032, 26860), (8534, 25280), (10040, 21488), (10112, 21335), (10744, 20080), (10880, 19829), (12640, 17068), (13430, 16064)]