641896

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:169

約数の個数: 32

約数和(自身を含む): 1310400

約数和(自身を除く): 668504

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 103, 152, 164, 206, 328, 412, 779, 824, 1558, 1957, 3116, 3914, 4223, 6232, 7828, 8446, 15656, 16892, 33784, 80237, 160474, 320948, 641896]

約数ペア:

[(1, 641896), (2, 320948), (4, 160474), (8, 80237), (19, 33784), (38, 16892), (41, 15656), (76, 8446), (82, 7828), (103, 6232), (152, 4223), (164, 3914), (206, 3116), (328, 1957), (412, 1558), (779, 824)]