19992256

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:473

約数の個数: 56

約数和(自身を含む): 42885360

約数和(自身を除く): 22893104

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 64, 76, 82, 152, 164, 304, 328, 401, 608, 656, 779, 802, 1216, 1312, 1558, 1604, 2624, 3116, 3208, 6232, 6416, 7619, 12464, 12832, 15238, 16441, 24928, 25664, 30476, 32882, 49856, 60952, 65764, 121904, 131528, 243808, 263056, 312379, 487616, 526112, 624758, 1052224, 1249516, 2499032, 4998064, 9996128, 19992256]

約数ペア:

[(1, 19992256), (2, 9996128), (4, 4998064), (8, 2499032), (16, 1249516), (19, 1052224), (32, 624758), (38, 526112), (41, 487616), (64, 312379), (76, 263056), (82, 243808), (152, 131528), (164, 121904), (304, 65764), (328, 60952), (401, 49856), (608, 32882), (656, 30476), (779, 25664), (802, 24928), (1216, 16441), (1312, 15238), (1558, 12832), (1604, 12464), (2624, 7619), (3116, 6416), (3208, 6232)]