80136680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8111}}^1$

素因数の和:8154

約数の個数: 64

約数和(自身を含む): 204422400

約数和(自身を除く): 124285720

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 8111, 9880, 16222, 32444, 40555, 64888, 81110, 105443, 154109, 162220, 210886, 308218, 324440, 421772, 527215, 616436, 770545, 843544, 1054430, 1232872, 1541090, 2003417, 2108860, 3082180, 4006834, 4217720, 6164360, 8013668, 10017085, 16027336, 20034170, 40068340, 80136680]

約数ペア:

[(1, 80136680), (2, 40068340), (4, 20034170), (5, 16027336), (8, 10017085), (10, 8013668), (13, 6164360), (19, 4217720), (20, 4006834), (26, 3082180), (38, 2108860), (40, 2003417), (52, 1541090), (65, 1232872), (76, 1054430), (95, 843544), (104, 770545), (130, 616436), (152, 527215), (190, 421772), (247, 324440), (260, 308218), (380, 210886), (494, 162220), (520, 154109), (760, 105443), (988, 81110), (1235, 64888), (1976, 40555), (2470, 32444), (4940, 16222), (8111, 9880)]