20399616

素因数分解:

$2^9\times 3^2\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:276

約数の個数: 120

約数和(自身を含む): 62239320

約数和(自身を除く): 41839704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 48, 57, 64, 72, 76, 96, 114, 128, 144, 152, 171, 192, 228, 233, 256, 288, 304, 342, 384, 456, 466, 512, 576, 608, 684, 699, 768, 912, 932, 1152, 1216, 1368, 1398, 1536, 1824, 1864, 2097, 2304, 2432, 2736, 2796, 3648, 3728, 4194, 4427, 4608, 4864, 5472, 5592, 7296, 7456, 8388, 8854, 9728, 10944, 11184, 13281, 14592, 14912, 16776, 17708, 21888, 22368, 26562, 29184, 29824, 33552, 35416, 39843, 43776, 44736, 53124, 59648, 67104, 70832, 79686, 87552, 89472, 106248, 119296, 134208, 141664, 159372, 178944, 212496, 268416, 283328, 318744, 357888, 424992, 536832, 566656, 637488, 849984, 1073664, 1133312, 1274976, 1699968, 2266624, 2549952, 3399936, 5099904, 6799872, 10199808, 20399616]

約数ペア:

[(1, 20399616), (2, 10199808), (3, 6799872), (4, 5099904), (6, 3399936), (8, 2549952), (9, 2266624), (12, 1699968), (16, 1274976), (18, 1133312), (19, 1073664), (24, 849984), (32, 637488), (36, 566656), (38, 536832), (48, 424992), (57, 357888), (64, 318744), (72, 283328), (76, 268416), (96, 212496), (114, 178944), (128, 159372), (144, 141664), (152, 134208), (171, 119296), (192, 106248), (228, 89472), (233, 87552), (256, 79686), (288, 70832), (304, 67104), (342, 59648), (384, 53124), (456, 44736), (466, 43776), (512, 39843), (576, 35416), (608, 33552), (684, 29824), (699, 29184), (768, 26562), (912, 22368), (932, 21888), (1152, 17708), (1216, 16776), (1368, 14912), (1398, 14592), (1536, 13281), (1824, 11184), (1864, 10944), (2097, 9728), (2304, 8854), (2432, 8388), (2736, 7456), (2796, 7296), (3648, 5592), (3728, 5472), (4194, 4864), (4427, 4608)]