1561910656

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{642233}}^1$

素因数の和:642266

約数の個数: 32

約数和(自身を含む): 3275393400

約数和(自身を除く): 1713482744

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 642233, 1284466, 2568932, 5137864, 10275728, 12202427, 20551456, 24404854, 41102912, 48809708, 82205824, 97619416, 195238832, 390477664, 780955328, 1561910656]

約数ペア:

[(1, 1561910656), (2, 780955328), (4, 390477664), (8, 195238832), (16, 97619416), (19, 82205824), (32, 48809708), (38, 41102912), (64, 24404854), (76, 20551456), (128, 12202427), (152, 10275728), (304, 5137864), (608, 2568932), (1216, 1284466), (2432, 642233)]