80301980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19211}}^1$

素因数の和:19250

約数の個数: 48

約数和(自身を含む): 193656960

約数和(自身を除く): 113354980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 19211, 38422, 76844, 96055, 192110, 211321, 365009, 384220, 422642, 730018, 845284, 1056605, 1460036, 1825045, 2113210, 3650090, 4015099, 4226420, 7300180, 8030198, 16060396, 20075495, 40150990, 80301980]

約数ペア:

[(1, 80301980), (2, 40150990), (4, 20075495), (5, 16060396), (10, 8030198), (11, 7300180), (19, 4226420), (20, 4015099), (22, 3650090), (38, 2113210), (44, 1825045), (55, 1460036), (76, 1056605), (95, 845284), (110, 730018), (190, 422642), (209, 384220), (220, 365009), (380, 211321), (418, 192110), (836, 96055), (1045, 76844), (2090, 38422), (4180, 19211)]