168192520

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{4243}}^1$

素因数の和:5245

約数の個数: 32

約数和(自身を含む): 378904320

約数和(自身を除く): 210711800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 3964, 4243, 4955, 7928, 8486, 9910, 16972, 19820, 21215, 33944, 39640, 42430, 84860, 169720, 4204813, 8409626, 16819252, 21024065, 33638504, 42048130, 84096260, 168192520]

約数ペア:

[(1, 168192520), (2, 84096260), (4, 42048130), (5, 33638504), (8, 21024065), (10, 16819252), (20, 8409626), (40, 4204813), (991, 169720), (1982, 84860), (3964, 42430), (4243, 39640), (4955, 33944), (7928, 21215), (8486, 19820), (9910, 16972)]