81661696

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:301

約数の個数: 72

約数和(自身を含む): 174312320

約数和(自身を除く): 92650624

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 103, 128, 152, 163, 206, 256, 304, 326, 412, 608, 652, 824, 1216, 1304, 1648, 1957, 2432, 2608, 3097, 3296, 3914, 4864, 5216, 6194, 6592, 7828, 10432, 12388, 13184, 15656, 16789, 20864, 24776, 26368, 31312, 33578, 41728, 49552, 62624, 67156, 99104, 125248, 134312, 198208, 250496, 268624, 318991, 396416, 500992, 537248, 637982, 792832, 1074496, 1275964, 2148992, 2551928, 4297984, 5103856, 10207712, 20415424, 40830848, 81661696]

約数ペア:

[(1, 81661696), (2, 40830848), (4, 20415424), (8, 10207712), (16, 5103856), (19, 4297984), (32, 2551928), (38, 2148992), (64, 1275964), (76, 1074496), (103, 792832), (128, 637982), (152, 537248), (163, 500992), (206, 396416), (256, 318991), (304, 268624), (326, 250496), (412, 198208), (608, 134312), (652, 125248), (824, 99104), (1216, 67156), (1304, 62624), (1648, 49552), (1957, 41728), (2432, 33578), (2608, 31312), (3097, 26368), (3296, 24776), (3914, 20864), (4864, 16789), (5216, 15656), (6194, 13184), (6592, 12388), (7828, 10432)]