138715520

素因数分解:

$2^7\times 5^1\times {\mathrm{216743}}^1$

素因数の和:216762

約数の個数: 32

約数和(自身を含む): 331618320

約数和(自身を除く): 192902800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 216743, 433486, 866972, 1083715, 1733944, 2167430, 3467888, 4334860, 6935776, 8669720, 13871552, 17339440, 27743104, 34678880, 69357760, 138715520]

約数ペア:

[(1, 138715520), (2, 69357760), (4, 34678880), (5, 27743104), (8, 17339440), (10, 13871552), (16, 8669720), (20, 6935776), (32, 4334860), (40, 3467888), (64, 2167430), (80, 1733944), (128, 1083715), (160, 866972), (320, 433486), (640, 216743)]