8216395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 11427840

約数和(自身を除く): 3211445

約数列:

[1, 5, 11, 31, 55, 61, 79, 155, 305, 341, 395, 671, 869, 1705, 1891, 2449, 3355, 4345, 4819, 9455, 12245, 20801, 24095, 26939, 53009, 104005, 134695, 149389, 265045, 746945, 1643279, 8216395]

約数ペア:

[(1, 8216395), (5, 1643279), (11, 746945), (31, 265045), (55, 149389), (61, 134695), (79, 104005), (155, 53009), (305, 26939), (341, 24095), (395, 20801), (671, 12245), (869, 9455), (1705, 4819), (1891, 4345), (2449, 3355)]