681248

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:420

約数の個数: 24

約数和(自身を含む): 1367100

約数和(自身を除く): 685852

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 244, 349, 488, 698, 976, 1396, 1952, 2792, 5584, 11168, 21289, 42578, 85156, 170312, 340624, 681248]

約数ペア:

[(1, 681248), (2, 340624), (4, 170312), (8, 85156), (16, 42578), (32, 21289), (61, 11168), (122, 5584), (244, 2792), (349, 1952), (488, 1396), (698, 976)]