389940208

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{44071}}^1$

素因数の和:44165

約数の個数: 40

約数和(自身を含む): 874388480

約数和(自身を除く): 484448272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 4424, 8848, 44071, 88142, 176284, 308497, 352568, 616994, 705136, 1233988, 2467976, 3481609, 4935952, 6963218, 13926436, 24371263, 27852872, 48742526, 55705744, 97485052, 194970104, 389940208]

約数ペア:

[(1, 389940208), (2, 194970104), (4, 97485052), (7, 55705744), (8, 48742526), (14, 27852872), (16, 24371263), (28, 13926436), (56, 6963218), (79, 4935952), (112, 3481609), (158, 2467976), (316, 1233988), (553, 705136), (632, 616994), (1106, 352568), (1264, 308497), (2212, 176284), (4424, 88142), (8848, 44071)]