19997184

素因数分解:

$2^9\times 3^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:345

約数の個数: 80

約数和(自身を含む): 54603648

約数和(自身を除く): 34606464

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 47, 48, 64, 94, 96, 128, 141, 188, 192, 256, 277, 282, 376, 384, 512, 554, 564, 752, 768, 831, 1108, 1128, 1504, 1536, 1662, 2216, 2256, 3008, 3324, 4432, 4512, 6016, 6648, 8864, 9024, 12032, 13019, 13296, 17728, 18048, 24064, 26038, 26592, 35456, 36096, 39057, 52076, 53184, 70912, 72192, 78114, 104152, 106368, 141824, 156228, 208304, 212736, 312456, 416608, 425472, 624912, 833216, 1249824, 1666432, 2499648, 3332864, 4999296, 6665728, 9998592, 19997184]

約数ペア:

[(1, 19997184), (2, 9998592), (3, 6665728), (4, 4999296), (6, 3332864), (8, 2499648), (12, 1666432), (16, 1249824), (24, 833216), (32, 624912), (47, 425472), (48, 416608), (64, 312456), (94, 212736), (96, 208304), (128, 156228), (141, 141824), (188, 106368), (192, 104152), (256, 78114), (277, 72192), (282, 70912), (376, 53184), (384, 52076), (512, 39057), (554, 36096), (564, 35456), (752, 26592), (768, 26038), (831, 24064), (1108, 18048), (1128, 17728), (1504, 13296), (1536, 13019), (1662, 12032), (2216, 9024), (2256, 8864), (3008, 6648), (3324, 6016), (4432, 4512)]