123988760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{442817}}^1$

素因数の和:442835

約数の個数: 32

約数和(自身を含む): 318828960

約数和(自身を除く): 194840200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 442817, 885634, 1771268, 2214085, 3099719, 3542536, 4428170, 6199438, 8856340, 12398876, 15498595, 17712680, 24797752, 30997190, 61994380, 123988760]

約数ペア:

[(1, 123988760), (2, 61994380), (4, 30997190), (5, 24797752), (7, 17712680), (8, 15498595), (10, 12398876), (14, 8856340), (20, 6199438), (28, 4428170), (35, 3542536), (40, 3099719), (56, 2214085), (70, 1771268), (140, 885634), (280, 442817)]