15990296

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 36188160

約数和(自身を除く): 20197864

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 61, 62, 122, 124, 151, 217, 244, 248, 302, 427, 434, 488, 604, 854, 868, 1057, 1208, 1708, 1736, 1891, 2114, 3416, 3782, 4228, 4681, 7564, 8456, 9211, 9362, 13237, 15128, 18422, 18724, 26474, 32767, 36844, 37448, 52948, 64477, 65534, 73688, 105896, 128954, 131068, 257908, 262136, 285541, 515816, 571082, 1142164, 1998787, 2284328, 3997574, 7995148, 15990296]

約数ペア:

[(1, 15990296), (2, 7995148), (4, 3997574), (7, 2284328), (8, 1998787), (14, 1142164), (28, 571082), (31, 515816), (56, 285541), (61, 262136), (62, 257908), (122, 131068), (124, 128954), (151, 105896), (217, 73688), (244, 65534), (248, 64477), (302, 52948), (427, 37448), (434, 36844), (488, 32767), (604, 26474), (854, 18724), (868, 18422), (1057, 15128), (1208, 13237), (1708, 9362), (1736, 9211), (1891, 8456), (2114, 7564), (3416, 4681), (3782, 4228)]